I can kind of understand if someone is avoiding the vaccine and also isolating themselves to protect against the virus, but I really just don't understand the risk-benefit analysis where the vaccine is too risky but catching Covid isn't.
Also, the risk of catching Covid unvaccinated may not be that low. But, the risk of any serious vaccine side-effects, or catching Covid vaccinated, is super low. IIRC Israel did a study and, the amount of breakthrough cases requiring hospitalization for under 40 was 0.3 per 100k, and the amount of people suffering myocarditis and other vaccine complications is in the double-digits, despite vaccinations being in the billions.
We know little about the vaccine, but we also know little about the effects of social media, random pollutants, etc. And that stuff is applied without your consent, and unlike the vaccine that stuff probably is harmful long-term.