IT wouldn't be a problem if they'd stay home and quarantine 24/7. But if they get the virus (hospitals are filled with 99% unvacinated patients), and they go about withouit a mask, within a very short time (less than 3 days, and many more for every day after that, they will have infected and EXPONENTIAL number of others, including their own family.
Not getting the vaccine and refusing masks they put EVERYONE ELSE in danger of DYING FROM COVID.
I don't understand how it could be that you couldn't see tjat yourself.
Viral illnesses spread like wildfae. If you refuse to follow the rules, YOUR BODY INFECTS OTHER BODIES.