There is not a contradiction in saying that you made your bed, you sleep in it and making pleas to actually get vaccinated and wear a mask, because otherwise you treat people's decisions like they don't matter and only focus on the consequences
The ethical thing is to nip this in the bud beforehand, but when you behave in an irresponsible way that has immediate short term consequences in the scale of the pandemic, this is not comparable to the dishonest equivocations of people with heart disease due to poor diet and exercise, because that is far more long term
If they genuinely think they can do better, how is it unethical to expect integrity from them?
This is about preserving society and a collective, this kind of "individualism" is damaging and antisocial and should not be encouraged remotely, but treated accordingly as damaging. It is not lacking compassion if you give someone prior warning on this and then follow through with the punishment anymore than it is cruel to establish reasonable boundaries for a child and then punish them when they break them.
I don't wish death on anyone, but I also am not going to be broken up over deaths that are based primarily, if not solely, on self destructive tendencies that don't respond to any attempts at correction. That's basic karma