As someone with parents who talk about aliens, culture-war BS, and that the problem with Trump is that he isn't antivax enough? I assure you you're wrong. I mean they aren't buying raw milk but they definitely picked up on the idea from the rightosphere, and have talked about it a few times too.
I should be clear there is a background of "REGULATION BAD" here (government bad, corporation/money good). Also republican lawmakers changing laws on raw milk (and then getting sick after drinking it in celebration, cause not confirmed either way but the excuses are onion-esque particularly the lawmaker sick on his office couch)
The woo woo isn't owned by either side either, though I would say it may be more of a case of weak political alignment that may shift to better suit their agenda (this is the case for my parents who voted for Obama and now express their regret for that in relation to who they are now) and/or a change of views they now see as acceptable to publicly have.