First off, no one cares what a bunch of medical students (who usually change substantially in their views by the end of residency care of the things they see) and academic physicians (who are shielded from what current and future practice would be like by their positions in the white tower of academia) take a stand about. They're the least realistic and most sheltered groups in regard to what actual medical practice, wages, and conditions are like.
Second, physicians don't have a whole hell of a lot of say in much- our own AMA threw us under the bus for Obamacare because the government gives them more money than physicians do (not even ****ing joking), and there's a whole lot more people that would like to see us hurt financially than would like to see us well off, because there is, as they say, only so much of the pie to go around.
I view socialism as unethical myself, as it arbitrarily takes from the productive and gives to the unproductive, often for things that serve no benefit to the productive person. If a wealthy person wants to help others, that should be their prerogative, not the government's. Again, this goes down to morality being taken away from individuals and given to a system that is inherently amoral at best and immoral at worst- you cannot force people to do good and still have it be "good." Practical, yes. Ethical, not so much.