It's not a belief, it's a fact. That's what it means to rely on information backed by evidence, trials, studies, and scientists around the planet. You on the other hand have to rely on lawyers, memes, qanon, and any kook who agrees with you, for your science information. THAT is what you call a cult, a real one. There isn't a single thing you believe in which is backed up by anything real. It's all a free for all of made up fan fiction and wish fulfillment posted all over the internet by other people in your cult. Billions have taken the vaccine. By any medical standard it is safe. All your antivaxx covid memes in the world won't change this simple fact.