The U.S. health care system needs to be fixed. The question is the best way to fix it, and there are better models to follow than the Canadian "single payer" system.
Not only would Sander's plan be emulating a system which has some major flaws, it would also probably be politically unpopular. Most people want universal coverage, but only a minority support ending private insurance. Sander's plan would give the republicans plenty to attack.
How serious is this Canadian wait problem?
I guess it depends on whether you're one of the people that's stuck on the wait list.
There was actually a case before the supreme court of Canada where someone sued the government over being stuck on a wait list... he won the case when they found it violated the provincial charter of rights.
https://en.wikipedia.org/wiki/Chaoulli_v_Quebec_(AG)
Now the thing about Canada is that we don't have a single health care system... we have multiple systems (one for each province), so different provinces will have different issues with wait lists, depending on location.
My cursory research seems to indicate longer waits are only common for major, non-emergency surgeries. So yeah, a joint replacement might take a few months. That's unpleasant, but not life threatening.
Yes, emergencies do get handled quickly. But even non-emergencies can be serious. They can impact quality of life and even cause premature death.
You casually dismiss a joint replacement delay as 'unpleasant' but if you're under severe pain because of it you might not be so happy.
I'm a perfect example: Earlier this year, I went to the doctor for a routine visit (get the oil changed, rotate the tires, etc.) I brought up 2 issues: a skin growth that has been increasing in size (doc said it should be biopsied as it could be cancerous), and an issue where I stop breathing at night (possible sleep apnea, which has been linked to premature death). It took over 6 months for them to contact me to set up an appointment with a dermatologist. By the time I actually have the appointment, it will have been almost 10 months... and that's just for the initial consult. It may be over a year before I actually get treated. And the possible sleep apnea? Still haven't been scheduled for a sleep study.
I also have a cousin who (possibly) tore a ligament. He was on the waiting list for an MRI for
months in order to get diagnosed.
Comparisons to the US system always have a major data hole, which is the uninsured who simply are not receiving services that they need.
Actually the biggest problem here is that whenever I bring up the problems with Canada's health care system, they always jump in to compare it to the United States.
Once again:
I am not comparing the Canadian system to the American system. I am comparing the Canadian system to places like the U.K., which mix private and public systems, with better results than Canada's system.
I'm not saying "Keep your American system the way it is". (I'm acknowledging your system largely sucks.) I'm saying "Don't replace it with the second worst system... replace it with one of the better systems".
A buy into medicare system strikes me as non-optimal. Unless you start allowing for rejection of pre-existing conditions, why wouldn't people just opt out until they need medical care? If the goal is to cover the medical risks for the entire US population, the simplest route is to just tax the general population like we do for other universal services and provide it. The added layer of insurance bureaucracy does not add value.
Allowing people the option to buy private insurance gives a health care system flexibility.... if someone
wants to wait for treatment on the public system they can; if someone thinks "Its better for my state of mind to get faster treatment" they can go private. Not everyone has the same mind-set when it comes to their financial and life priorities.
And governments are often slow to react to changes in health care technology. (Canada often lags behind the U.S. in certain treatments.)
Plus, put it this way: Lets say Sanders gets his way and you have a fully funded single-payer health care system. A decade down the road, the republicans (under, lets say, Paul Ryan) get elected. He now gets to decide what to fund and how much. Would you really want to be in the situation where your health care is dependent on him?