The analogy er... rather fails at some fundamental points.
Actually, it's virtually identical, a point I'd like to make.
They (individual religions and individual political parties/persuasions) are both the same kind of gigantic composite memes of massive worldviews whose purpose is to induce the meme's reproduction via spreading.
Hence they both adopt ideas that lead to spreading to others by way of force and by way of ethical posturing.
The meme's complex "idea", i.e. the massive worldview mental model, induces behavior that engenders the meme's spread. In your mind (i.e. your mental worldview) you do something for some "virtual" reason, but the real reason (i.e. the net effect in the real world) aids the meme's spread,
regardless of how well your behavior and its real effect match what should happen, or you believe is happening, in your mental model.
They both claim to know the "best way to behave". They both take advantage of human tendencies to desire approval by others by way of suggesting moral failure for not following them.
They both adopt some component ideas that are beneficial to individuals or people in general that happen to work, and others that "sound good" but may not only not work, but be actually harmful. But as long as the harm isn't too great, that part of the worldview aids the spread of the master meme more than hinders it. Hence religions and political persuasions are akin to parasites.
Witness the angry reactions one gets by theists when skeptics pose simple questions in their forums, and compare to the angry reactions when core political beliefs are questioned.
There's a reason they're identical.
Because they are one and the same phenomenon. Remember that to a meme, the accuracy of a piece of the mental worldview with respect to the real world
is largely irrelevant. As long as it "works" in the worldview, and doesn't fail too obviously or badly in the real world, it serves as an advantage to the meme's propagation, rather than a hindrance.
For example, for religion, the component part about "if you believe hard enough, xxx will happen" (healing, walk on water, fly a mountain about on command, whatever) obviously doesn't work in reality (ahh, meme has it covered. You didn't believe hard enough!) And very few people nowadays actually die from medical causes that could be healed by medicine, because of faith. Centuries earlier, there were very few other viable options, other than doing nothing, so even if faith killed more (by, say, whipping the demons out) than doing nothing way back when, it was only slightly more.
For politics, one might consider a thing some skeptics are aware of: the government devoting massive resources to make sure every child gets some education, when devoting
just a fraction of that to the highly advanced children would yield spectacularly better overall benefit to society. But that would detract from the meme's spread since it would contradict the worldview portion about fairness (and gosh them smart kids are mostly from middle-to-upper class families anyway!) and privilege and "they already got theirs!" and so on. This could lead to more loss of votes, and thus fewer elections the meme "wins" as a political worldview.
So cast away it is.
There are plenty of other examples for both, including my own pet project, that socialized medicine (i.e. forced reduction of profits) will result in slower technological growth in medicine, and thus end up hurting "society" far more than guaranteeing medical care for everyone would help. A paltry 10% slowdown would lead to what, a hundred million or more needless deaths after a century? How many would die today if they had 1998 medical tech available? Or 1988? Or 1978? 1978-level care is only a 30% slowdown away, which is trivial for massive government intervention to do.
But even as massive as that is, the deaths are phantom deaths that would live some alternate timeline, as it were. And thus serve less purpose to the meme's reproduction-via-election than a few good sob stories in front of the cameras, today. That medical tech is shared around the world helps mask the problem, too, as the socialized medicine countries don't fall behind the other ones generating more of the advances.
And the meme leaned back and smiled.
Now back to the political issue of the socialized medicine, and observe what happens: This crushes the worldview of certain people out there. If their idea leads to hundreds of millions of needless deaths over a century, then they cannot be good people.
But their worldview tells them they are good people. It tells them socialized medicine is a benefit, not a liability. They have a massive emotional investment in it.
So, like a religious person who believes God must be good,
and therefore there's a reason he let that girl get raped and murdered, so too the political person thinks, "I
know this is a good thing,
and therefore all I need do is search for the first half-decent explanation that suits my mind and lets me keep my warm and fuzzy feeling about my good character.
If I ram down the religious person's throat statements like, "Well, how can God be ethical letting that baby be put in the microwave?", the religious have never answered yet beyond "there must be a reason, but we don't know it yet, or cannot understand it."
I never hear from them again.
If I ram down the political person's throat statements like, "Well, last century was crammed with hundreds of economic "experiments" that showed restricting profits and freedom correlates directly and quite well with slowing economic development", they heave out another repeat of their bluster, and
I never hear from them again.
Although this memetic analysis might be somewhat new, what's not new is the idea that you can swap religion for politics by replacing "God" with "The People" and "rewarded in the afterlife" with "rewarded 5-10 years from now".
Both never quite seem to get there. Both completely ignore your right to freedom*. Freedom means you can choose not to follow the meme. This causes the meme to not spread as much, or at all, anymore.
So the memes have a tendency to adopt worldview components that allow them to enforce themselves.** Emphasis on "force".
This is why various political worldviews seek to force their component pieces on everyone, by, say,
requiring to join the one and only allowed government health care plan***. This is also why religion, in the Middle East among other places, where it hasn't given up the
legal power to enforce, is kicking back so violently. The very belief that religion should be separate from government, so popular in the west (that's the various Western political memes telling you that power should be reserved for politics, and you should hold that as a value) is derided with claims that it'll make God mad at us if we do that to our religion-in-charge-meme over here.
Ayn Rand (your political meme probably tells you to consider her misguided at best, and her "followers" as drooling slaves, and you feel good about yourself when you do) noted this, more or less, when she said, "There should be separation of economics and state, just as there is between religion and state,
and for exactly the same reason." She realized why they were, in fact, superficially different aspects of
exactly the same phenomenon.
I now await reactionary constructions from your religious and/or political worldview memes, defending them, as to why I should not be free.
* The two memes fought a massive war in the West that politics won by stripping religion of it's
legal authority. Authority it retained for itself, of course, which was what it was all about.
** It's interesting that "deconstructionists" almost got it right, now that I think about it. They just focused on typical hatred issues like sexism and power struggles, when in fact, those were just part of the meme's idea (worldview) vs. reality (behavior) factor, along with many, many others.
*** "Hey, some European countries have a basic government coverage, but you can buy better care with your own money!" "Oh yeah? Well, ummm, let's add
single-payer to the meme." So "health care for everyone!", which has absolutely nothing to do with outlawing care for those who get it already, becomes "Socialized,
single-payer medicine". Now there's no escape. Experimentation in Canada shows upwards of 98% after a few years will refuse to give it up, even as it fails and illegal medicine-for-pay shops spring up, openly, like popcorn.