Dismissing an argument for lack of substantive foundation is absolutely an argument for why it is unsound. And I am all for pointing someone on another path. Unfortunately the vast, vast majority of people I have encountered in this vein have had this problem with doubling down when presented with evidence contrary to their belief.
People living with those kind of delusions, that evidence proving their point wrong doesn’t at least warrant a second look, cannot be reasoned with. I reserve my efforts for people with any level of an open mind. Disagreement can be productive, but only when people engage honestly.
I am super confused by your take here. Liberals who, and let’s be clear, regularly push for better if not universal health care (and are the only major party to do so) jerk off big Pharma to you? How exactly do you get to that conclusion?