TRUMP made it extremely political during covid, and all the anti-vaxxers that were originally on the "hippie" side of the left went to alt-right wing. besides it was the movement jumpstarted by Jenny mccarthy and her husband convincing midwestern moms in the 2000s that it cause autism they took it and ran with it.(apparently i dint see anything after 2015, so they mightve stopped doing it"

All of these shitty immoral parents with "autistic" children need something to blame besides themselves, so we have invented something to blame.

The main group of people that pushed and started this conspiracy were stay at home moms, often religious. They are awful at cause and effect.

It's not political per-see, these are ideological extremist.

Because the proponents try to work through all means, including political, to spread their idiocy.

A capable government would mandate a basic set of vaccines, with medical exceptions only, and those only with a second opinion from a limited list of specially accredited specialists.

I'd say it started out as a troll, Poe's law took hold, and now it's used as yet another dividing tactic so Republicans can swindle half the country into ignoring the abuse by the ruling class.