The issue is that its not only a personal health concern, but a public one. That's why there are smoking areas and such, because YOU may be okay with the health risks, but you don't have the right to also impose that onto people around you... and with an infectious disease it's not about you getting sick, it's about spreading it to other people who don't want to get it. I personally don't care if I got it, but I'd care if my mother got it, or somebody else that might have complications.. so I'm taking the precautions for them, not for me. It's also unfair towards people who genuinely cannot get the jab because of autoimmune diseases etc who depend on others not spreading/shedding the virus onto them.
(I'm pretty sure this is not news at all, but it was true at the beginning of the pandemic and it's true now...)
I think it's just rude to COMPLETELY ignore everything you could do to slow the spread, that's why I'm saying I'll be somewhat okay with unvaccinated people if they at least take the responsible route and get tested frequently and quarantine if they get sick (ofc vaxxed people should do the same), but if you refuse to even do that much, you're just being a prick.