The Democrats tried to address the problem, and came up with a patchwork fix that addresses some of it. It is a compromise attesting to the fact that politics is the art of the possible. Obamacare is what was possible to pass. It partially addresses the issue of the uninsured, but doesn't address the issue of cost. There is a lot of work to do before we really have a health care system that is worthy of a wealthy nation in the 21st. century.
but, my point was this, regarding the individual mandate: If we, as a society, are willing to allow the accident victim, or the person with a serious illness, to either get well or die on his own, then we have no right to insist that anyone have insurance. If, on the other hand, we treat that illness or injury at our expense, then we have every right to insist that everyone have insurance or pay a tax to pay for the cost of the uninsured. It's a matter of individual responsibility.