how society should respond if a healthy 30-year-old man who decided against buying health insurance suddenly goes into a coma and requires intensive care for six months
No one is cheering for this hypothetical person dying. They are cheering Ron Paul's statement about personal responsibility and how the government is not our nanny.
This is obviously and indisputably untrue. If you believe this to be the case, watch the video again.
So someone decides to ride a motorcycle without a helmet. If that person were to wreck and strike his head on the pavement... should everyone be forced to pitch in to pay the $300,000 medical bill when a $80 helmet would have left him with only scratches?
The hypothetical 30 year old decided against buying a hypothetical health insurance policy. I get health insurance through my employer for myself and my family. I suppose it is perfectly acceptable to tell my employer rather than pay that money to an insurance company... just put it in my paycheck. If someone in my family gets sick, we can utilize the county health department. If I am in a life threatening situation, the hospital will have to care for me... I will let other taxpayers foot the bill. Is this okay? I sure could use the extra money.. and if my fellow taxpayers do not mind what is the harm?
That's why we need an individual mandate. We as a society have decided we are unwilling to allow people to die from medical problems/injuries when we can save them. That obviously creates a free rider problem. You now have two choices, and two choices only. You either change it back to allowing people to die (good luck!), or you force people to pay in regardless.
Also, if you believe the uninsured are getting such a sweet deal out of things, I'm going to assume that you haven't tried to use the US health system without insurance for quite a long time. BTW in many cases you are free to decline your employer's health insurance, so since you think the uninsured don't have any trouble with this and you could use the extra money, go do it!