Would actual data convince you? Data out of South Africa shows that those who had previous Alpha, Beta, or Delta infections have *near-zero* immunity against Omicron. The same data show that those with infections *and* vaccinations have a significant antibody response to Omicron:Personally, I am not sure anyone can convince me that natural immunity is not the best remedy. But, not everyone is willing to take that chance. Let the people choose and let's move on with life.
A study over the weekend showed that neutralizing antibodies among people previously infected with Alpha (panel E), Beta (panel F), and Delta (panel G) completely failed to attach to Omicron. Those that were infected + vaccinated (or vaccinated + infected) had a strong response to Omicron (panel H).