Obviously you're correct in a vacuum, but this isn't a vacuum. There's a context of that question that you're seemingly ignoring for some reason. Nobody answering this question is saying vaccine should be questioned in a rigorous scientific context. That's not what the questions asking that's not what the answers are telling. They're saying it should be questioned by people selling you vials of silver on their podcast. They're saying it should be questioned by influencers. They're saying it should be questioned by whack jobs. They're saying it should be questioned by people with brainworms.

Because it was already questioned by scientists. That's called the scientific method. Peer review is already a part of our scientific process. So let's not pretend like that's not the context of the question and the answers. We should all be smart enough to realize that.