I believe in individualism and libertarian values but they too have a boundary: they’re fine as long as they don’t reasonably interfere with another’s right to live a healthy and happy life. So people who refuse to wear masks deprive others of it. Similarly, people who don’t get vaccinated also deprive others of a healthy life.
Ironically, I think I’m even more individualistic than those anti-maskers and anti-vaxxers who constantly try to brainwash others into their toxic collective ideologies instead of actually thinking for themselves.