First of all, no, it's not factually true that the guy made millions by denying healthcare to people. That's not how the world works, and the people spreading that lie are really doing a disservice to society.
Secondly, yeah I think you're pretty much proving the point. You've seen that much unity? You haven't seen all the disunity, all the people pointing out what a dangerous and antisocial reaction it is? Well, sounds like you're in an echo chamber. Exactly as was pointed out.
It's really disturbing that people like you are so bloodthirsty, even more disturbing that you are so uninformed that you're willing to support murder in response to an obviously false allegation.
Sure would be nice if you would step out of your echo chamber long enough to realize that you're being sold some really dangerous propaganda here.