Of course it matters - to them and to their families, and we treat a lot of people for a lot of things that are "their fault" like smoking related illnesses; alcohol related problems; lifestyle induced heart issues, diabetes etc; car accidents; men up ladders with chainsaws who really ought to know better.
But what also matters in this is why vaccinated people should be paying a heavy price for the choices that some people made not to be vaccinated (and I acknowledge that children have no choice, many young people also, and even older folk like me may still not be fully vaccinated due to rollout delays). On face value, as these cases are reported, many of the people in ICU are not in the categories that had no choice. They are people who chose not to be vaccinated. This does not mean they don't matter or don't deserve care. It just means that the rest of us should not be held hostage.
We need to get over expecting no one to be sick or in ICU with COVID. Plenty of people are in ICU on any given day, and none of us even know about it. That is how it should be.