No, because for herd immunity to set in, far too few people have SARS-CoV-2 antibodies simultaneously (even if we let COVID-19 run rampant). That, in a nutshell

No, because for herd immunity to set in, far too few people have SARS-CoV-2 antibodies simultaneously (even if we let COVID-19 run rampant). That, in a nutshell, is the main reason why the “herd immunity”-based mitigation strategies are being dismissed by the vast majority of immunologists and epidemiologists. In fact, “natural” herd immunity (without the help of vaccines) might never have eradicated a single disease — at best, it leads to a temporary reduction in numbers. The “standard example” for natural herd immunity eradicating a disease is the black plague, but most experts now believe that herd immunity isn’t actually responsible for its disappearance from Europe.