There has been a lot of controversy over a claim by a veterinarian Geert Vanden Boosche, that mass vaccinations will drive the virus to escape into an even more virulent form that would wipe out much of humanity. Snopes has a summary. The facile analogy is antibiotic resistance for bacteria.
Boosche has a theory that vaccines should work with
the innate immune system and
“natural antibodies” which are not tied to specific antigens. But without vaccines at all, we would be left with a combination or rapid tests, surveillance, and survival of the fittest. Boosche says that the current vaccines may undermine innate immunity eventually.
When Bret Weinstein (Darkhorse Podcast Clips) interviewed him on Facebook (YT copy), the platform provided its own arbitration of truth, as Bret explains in the embedded video. But the real controversy is in the earlier Facebook one.
But Zdoggmd has a much more thorough answer on his own site (a transcript of his video).