Yes, and charity spending on one person necessarily takes away from spending on another too. To support someone whose choice of behavior impacted them means you can't support someone who was injured entirely through 'acts of god'.
> It's not as if we're throwing away livers rather than give them to alcoholics.
No, but but they do go to the back of the line. Especially if they still drink.
> I'm sure you must be aware that we do treat all kinds of obesity-related conditions – and at great expense.
Sure. But thankfully we prioritize them to below children with heart defects, and non-obese adults with the same conditions.
> Are you in favor of conditionally refusing treatment to HIV patients depending on the manner in which they contracted the virus?
No more than I am for prioritizing treatment downward for everyone whose injuries were self-inflicted. That's only fair for the people whose were not.