With respect to culture wars and firing the "vaccine" hesitant it was a regime. Trump is now establishing a regime of a different kind. One can be unhappy with both.
I'm not the same person. But a vaccine which doesn't actually provide lasting immunity is a really shit vaccine. And while I wouldn't say that means it doesn't deserve to be called a vaccine at all, certainly many people think that.
No, it’s not. The tetanus vaccine saves lives and must be redone every so often. The cholera vaccine as well. There are many excellent vaccines that save lives that require boosters.