The question, really, comes down to this:
Is healthcare coverage a RIGHT, or is it a privilege?
What criteria are used to determine when someone has a RIGHT to something, vs. has to work hard to obtain it? Historically, healthcare has not been something that was viewed as being even close to an entitlement, until the last 10-20 years. Some of us have been around long enough to have seen our parents work hard to be able to purchase insurance (before it was included in employee benefits) for their families, but they always reminded us that it was something "to be thankful for", not something that we were "entitled to."
Having practiced medicine, I agree that some VERY BASIC net needs to be there, but that does not mean that everyone should have a right to multi-million dollar therapies. Should society be forced to pay for the absolute cutting edge therapy for a chain smoker with advanced lung cancer (i.e. how much of this situation is that person's individual responsibility for "doing something they knew could / would kill them"?) Sorry, but there are simply finite healthcare resources and they simply have to be rationed. The most logical rationing is for people that can pay some (or all) of their costs until more cost-effective therapies for expensive diseases are available that can cover a broader group of people.
Now, I do not necessarily ascribe to the following view point, but I have heard it over and over again from various "high income" earners:
********NOT MY VIEWPOINT*****************
As a top earner, why should I have to pay for 10 other people's healthcare? Isn't that forcing your "moral standard" of right and wrong upon me? I.e. "he makes more, therefore he should not only pay more, he should pay DISPROPORTIONATELY more."
I already pay a disproportionate share of taxes (and many of these people will point out that less than 50% of people in this country pay ANY tax), and you want me to pay more? The general population doesn't understand that I can just take all my money (and the industry that I built) to another country with a lower tax rate. And to be frank, there's not a damn thing you or anyone else could do about it.
********NOT MY VIEWPOINT*****************
Now, that's not what I'm going to do, but I put that out there as food for thought that many people with the power to change or control industries in this country feel that way. You can only tax them so much before they simply pack up and leave, and then your tax base for all these "social programs" evaporates. The top 1% could easily move away with little "pain". What do you do then when that 1% that contributes about 40-50% of your tax revenue leaves?