This is irrational. 1) According to available data, if you got vaccinated or pulled through COVID, you are well protected against severe COVID illness in future (cell immunity lasts for years). 2) You can get infected with variants both from vaccinated and unvaccinated people. You can't hide from unvaccinated people forever.
I assumed this was a typo given that it was in the section addressing unvaccinated people. I believe he means to say that if you are unvaccinated your risk is lowered by only spending time with vaccinated people since the data shows that vaccinated people are considerably more protected from delta infection (although less so than earlier strains).
That said, I wish more papers and studies would talk about rates for those who pulled through a previous strain of covid and how bad it was when discussing immunities rather than focusing only on vaxxed vs unvaxxed.
This is irrational. 1) According to available data, if you got vaccinated or pulled through COVID, you are well protected against severe COVID illness in future (cell immunity lasts for years). 2) You can get infected with variants both from vaccinated and unvaccinated people. You can't hide from unvaccinated people forever.