Nothing to do but stay healthy and work on reducing every co-morbidity you have. Stay as far away from fools as you can.
Yeah, they're pulling the social kamikaze routine to get even with liberals for imagined slights but they'll be taking out their fellow anti-vaxxer conservative allies as they do so.
You cannot reason with them. You cannot educate them. You cannot help them. You can only survive them. So survive them as best you can, put your energy with those who put their energy with you. That's who you focus on protecting and helping.
For these other fools, there's going to be a point where they're going to have to reckon with what they've done. It might be a funeral, or (medical) bankruptcy court, facing Covid themselves, or being sent home with some other medical emergency or condition to make it or not because the healthcare system has exhausted and collapsed. Maybe it's just the fear of something happening because the insurance companies went bankrupt and can't pay out claims any more.
When that happens, maybe the best next strategy for liberals is to not clean up after them for fucking once. Maybe then they'll learn.