It's sad that we, the people who believe in evolution, actually appear to be losing the debate in the public policy arena. You really have to ask why that is.
One reason we are losing is because our spokespeople are so frequently arrogant twits that nobody likes. If you listen to the arguments, they often sound like, "We're smart and modern. You are primitive hicks. Go home." It's not a way to make friends and influence people.
Another reason is that evolution is very counterintuitive and very difficult to understand. The fact is that most people who accept the theory could not defend it persuasively. I, myself, have a master's degree in engineering. I read a lot, including some populare science stuff, which includes some of Dawkins' books, Carl Sagan's "The Dragons of Eden", a few other books specifically on evolution, and lots of others on other scientific topics. In other words, I am way more educated than almost all Americans on the topic.
Despite that, when defending evolution, my most common defense of evolution consists primarily of another common logical fallacy, the Argument from Authority. Carl Sagan says it's true, and thousands of scientists say it is true. Therefore, it's true.
Meanwhile, we fail to understand the other side, and commonly make false statements about them. When that happens, it makes them less likely to believe us. To illustrate, I will take the original post, and show some flaws in the argument, which are numerous. I think there are three types.
1. False statements about believers in intelligent design.
2. Stating a fallacy that is also commonly used by "evolutionists"
3. Committing some other fallacy.
1. Subjectivism: Intelligent design is true because I want it to be true
This is common of any belief in a scientific theory which you don't understand. Since most believers of evolution can't explain evolution, they are committing the same fallacy.
Creationist dudes are all intensely religious,
This is simply false. I have known several "creationist dudes". Most are pretty casual about religion. They haven't bothered to study religion. They haven't bothered to study science. Neither one affects their life very much, so they haven't devoted much thought to it. It is true that, because of that, they commit that fallacy of subjectivism. In effect, they say, "I don't know much about this, but this one sounds right to me."
Don;t make the mistake of assuming that because the pamphlet writers are intense fundamentalists, all the pamphlet readers and pamphlet believers are also intense fundamentalists.
Evolutionists practice the flip side of this. They are ignorant. They can't prove evolution. However, they believe it anyway.
3. False Alternative: If Evolution is false, then God did it
First, t is very important to recognize that Intelligent Design doesn't say that. They are saying that some sort of divine thingy did it, but they don't say anything about the nature of that divine thingy. They are saying that life could not have happened by a random process.
Of course, we know that the leaders of the ID movement in America are, in fact, saying that God did it, and most of them also think one particular God did it. In fact, there is pretty solid evidence that the whole concept of Intelligent Design was invented primarily in a hope to pass muster against laws related to separation of church and state. They want to teach creationism without teaching creationism.
Nevertheless, they aren't teaching creationism.
If you fight intelligent design by saying it is creationism, you are committing logical fallacy. They are saying X, but we know that X is really Y. Y is demonstrably false. Therefore X is false. It's a classic strawman. Y, which is biblical literalism, is easily refuted scientifically. So, the straw man of biblical literalism is destroyed, and supporters of evolution claim that ID has been destroyed as well.
4. Non Sequitur: What happens when you use Religion in a Scientific debate.
Commonly employed by evolutionists as well, in this form: "Since God is not necessary to explain the existence or complexity of life, there is no reason to believe God exists." Sometimes, the consequent of the statement may even be "God does not exist" Logically, neither one is supported. Evolution is about science, not religion. It is possible to believe in both, simultaneously, with no contradictions. In fact, many people do. Not every evolutionist would employ this argument, but some do.
In fact, I'm fairly confident at least one will, in this thread.