Insurance is supposed to be about spreading risk of uncertain futures, not giving hand-outs (wealth redistribution) when futures are known..
No, insurance is gambling where the insured places a bet on the chance that he will get ill some time in the future. The insurance company is a casino which dictates the odds. The odds are always favourable to the insurance company, especially when the company has the option of denying you your bet. To the insured, it may look like spreading the risk, but it is really about placing a sucker bet. The casino wins, always.
Of course, an individual who chooses not to take that bet risks being screwed for life, unless he's filthy rich and doesn't need an insurance. That is why the concept of health insurance as business is inherently wrong. It is about threatening people with events out of their control into taking a bet which is unfavourable to them. This is why I, as a non-US citizen, can not give my full support to Obamacare. It's still using a system which is inherently flawed, only slightly better than the previous set of rules. Well, I'm one of the lucky ones. I don't need insurance, I have National Healthcare. You should try it. It rocks!
Wealth redistribution is fine (even though it's not insurance) as long as it follows the precedence outlined by the principle of subsidiarity: self, family, community or church, provincial government, national government, world government.
That is your opinion, based on nothing but opinion. The problem with your order of precedence is that incurs extra cost at every level. Cutting out the extra tiers will cut costs immensely and save money by pure volume. Besides, if there's anything that citizens should be able to rely on their government for, it's health care. Stop pumping your money into the war machinery and corn subsidies. Stop filling your expensive jails with people who smoke a joint. Not saying legalize it, just saying that potheads in jail are a waste of money and bring no value.