Conspiratorial sure, conservative though not sure how it gets labelled that. It's not a deeply ingrained philosophy of conservatism, and crazy is broad spectrum.
Its so fucking wild to see how fast the winds change. And since its inconveniently politically incorrect, history rewrites or "they were actually the opposite of us and lying"
Anti-Vax people are/were seen the leftist idiots who were anti-capitalist, anti-corpo, anti-the fascist govt, who would rather have died of preventable diseases than perpetuate the medical industry and its capitalist schemes trying to keep us sick to sell drugs and also ban weed.
It's so funny to watch the political sides swap and the doublethink take all of a few days to propogate.
When antivax was a lefty thing, it was a tiny percentage. The most wacky on the left always get the most airplay for some reason, making their views seem more mainstream than they really are.
Since antivax is now popular on the right, it has grown into a much larger proportion of the populace. It doesn't help that they now have positions in government.
As a kid I was an anarcho-communist punk rocker but I had a friend who was a christian and his parents were scammy, MLM, right-wing conservative types(think Rush Limbaugh but loonier) who distrusted the government and lied on their taxes. It was obvious how the wings of the political spectrum almost touch at times.
Paranoia and distrust of institutions, mystical thinking, adherence to alternative truth structures.. these are apolitical just as mental illness is also apolitical.