A great point. The same people decrying a vaccine that has been safely administered to nearly a billion people at this point and extensively studied will be the first ones to try all sorts of untested homeopathic and "alternative" nonsense.

This this a Bifurcation of the issue. lumping people whom; have a cation bias, are alt medicine nuts, classic anti vaxers, etc, together shuts down discourse and divides people.

I don't know why people are disagreeing with you. Look how many people are begging for "thoughts and prayers", a totally useless gesture with no medical benefits. Religious cures are an example of alternative nonsense. Ironically, it's not untested; we know that it doesn't work.

Citation needed. This to me seems like an attempt to group various people who disagree with you and classify them as lunatics.

Indeed, there are plenty of people who "believe in science" and trust authority figures, who believe in various forms of woo.

We can do better than guilt by association. It's a very weak argument, and turns more people away from potential vaccination. In fact insulting the remaining audience is worse than preaching to the choir, because it even turns away people who were previously 100% on one's side.