It doesn't matter whether any distinguishable group of people consume 90% of ICU resources. It is the job of the hospital to treat them regardless. Otherwise, that is discrimination. Nor is Covid a preventable disease, as even the vaccine very clearly does not prevent all hospitalizations or transmission. This is of course, not even mentioning the various mutations that are arising which I bet will no doubt cause the vaccine to be a yearly one like that for the flu. It is very clear right now that there are multiple vaccines available right now, but the fact that hospitals are not capable of handling this is a logistical joke.
You're right, it is a conscious choice to increase risk. I didn't say it wasn't. Just like it is a conscious choice to smoke, or to carry a gun in America. And in each case, there is indeed a fine line that needs to be drawn between their personal freedoms and those of the collective. But as far as I am aware, in none of these cases is the widespread systematic elimination of choice (of taking the vaccine, of opting to smoke, or owning a gun) the logical conclusion.