Earlier quoted context omitted.
But what about the millions of people with poor family/friends? Are they supposed to just roll over and die if they get sick? And don't say 'but charity', we already know charity is massively insufficient.
No, absolutely not. You're assuming that if the government didn't mandate health insurance, nobody would step in to help those people, which I don't believe is true. Lots of different groups – religious, businesses, municipalities, etc. – could fill that role. Individuals could even give directly to strangers in need through something like https://donorsee.com/ .
https://www.youtube.com/watch?v=mwzBJF5Q7Vw#t=3m29s
This is Dan Ariely describing "The public goods game" and the instability of 'cheating'. Cheating in scare quotes because the conclusion stands -- in fact is enhanced -- even when the 'defect' choice is regarded as a choice that members of society are free to take (in fact that is the case he discusses).