Yes -- and their ability to recruit and sustain their movement, like all movements, owes to a serious social problem that has a great deal of associated latent stress that they give an outlet to.

Namely, medical professionals have two serious problems:

1. They don't respect and communicate with their patients, as a matter of course. Just look at the standard discourse around medical treatment -- including the standard "15 minute blowoff" appointment.

2. (This is related, in that 1 likely caused 2, but --) They've utterly failed to explain modern medicine in a way understandable to their patients, forcing people to decide if they trust the same people who, eg, over-prescribed opiates based on shoddy science, leading to a national emergency. For a lot of people the answer is "no"; for some, it's "fuck no -- are you serious?"

The anti-vaxxer movement stems from these two facts of modern medicine, as much as whatever else you're trying to attribute.

The response that it's acceptable to use force against people for refusing to just shut up and trust you silently when you've routinely betrayed their trust without taking full, public accountability is psychotic.