If I feel you brought something on yourself why would I help you and not an innocent victim? And how would charity help resolve the issue of you dumping the cost on others, it would just be me instead of all of us, but still subsidizing.
> It would clearly be a moral obscenity to systematically allow people to die of treatable diseases because they can't afford treatment.
No, only if that money couldn't do greater good elsewhere.
> And if it's a question of 'blame' or 'risky behavior', then we should be refusing treatment to anyone who's ever eaten a donut.
In some proportion to the number of donuts, yes. Of course. Or at least they should go to the back of the line after we've helped people who didn't self-inflict.