Smoking for example, even though I consider smoking a terrible habit I would never advocate that society should not help pay for their lung cancer treatment.

We already heavily tax cigarettes anyway, so anyone who smokes is basically already paying for their future healthcare needs in small installments.

Besides, I like having an alcoholic beverage every now and then so I need society to help pay for my future liver/colon/throat cancer treatment.

In which case, and I know this is the antithesis of far left ycombonator, maybe everyone ought to be paying their own way and bearing the cost of their own choices. I’m not the person you replied to but I share their outlook on this specific viewpoint.