warned that mass vaccination during a pandemic could lead to much stronger variants that were immune to both the vaccine and our natural antibodies.
I have no idea how valid his arguments are but it is an interesting read.
https://37b32f5a-6ed9-4d6d-b3e1-5ec648ad9ed9.filesusr.com/ugd/28d8fe_266039aeb27a4465988c37adec9cd1dc.pdf