To build on that, this is an excerpt from a CDC media release of a report about the "normal"/non-variant strain...
The study of hundreds of Kentucky residents with previous infections through June 2021 found that those who were unvaccinated had 2.34 times the odds of reinfection compared with those who were fully vaccinated. The findings suggest that among people who have had COVID-19 previously, getting fully vaccinated provides additional protection against reinfection.
I'm not sure what point the other guy was trying to make, but please get vaccinated if aren't already. Viruses historically don't care about "feelings" or "beliefs". No reason to believe that this one or its now many variants will either.