They may not have used the exact terminology “nanochip” but similar things were already well within the public mind by the 80s. Novels like Cyborg (1972), the source for the “6 Million Dollar Man” and countless other works would mean functionally similar ideas were in the minds of some at least.
Back to anti-vaxxers, some of them come into it looking to find a reason bad things happen. And when they’re hurting and weak, they fall down a hole, and THEN, the preach the New Faith bringing harm to others.
I’ve mentioned this before on this board, but I had a lover (brief) in College that I kept up on through friends of friends. She was actively rebelling against a very traditional Christian upbringing at the time, so was experimenting (note, I do not say she wasn’t heartfelt!) with free love, spirituality, free choice, and other more expansive ways to live. After college she got married, and was more of a traditional progressive Democrat who considered herself spiritual but not religious, was for environmental causes, hated guns.
And then she and her spouse had their first child. Diagnosed with autism around age two. And then she snapped.
I’m not going to speculate (even in the Pit) if she had anti-vax trends previously (it happens on both sides of the political spectrum though generally for different reasons), but after flailing around trying to find a “fix”, it seemed she found the anti-vaxx movement as a way to explain to herself why this had happened, and of course, to find someone to blame, to focus the hurt, pain and despair onto.
And a few years after that, well, most of my information is lost. She became a very vocal supporter, and the friend of friends who had been my contact cut ties with her. At that point (this is all Pre-Trump and MAHA by years of course) she was somewhere between a Libertarian (who still wanted support for those like herself that had been harmed by Big Phama/Big Medicine) and a nihilistic “everyone is corrupt, burn it all down except those of US in the know” CT’er.
So, long story short: there’s a lot of ways for people to embrace anti-vaxx philosophy, some are hurting for real, honest reasons and lashing out. I’m more tolerant of them emotionally (a personal choice TBC!) but hate the harm they do to others and do NOT forgive them that. The fact that so very many of them are conned into their beliefs in a moment of weakness by all the out-and-out cons that are selling them on their own products (clicks, books, supplements, etc.) - oh those fuckers are the ones that make me want to join the “burn them all down” types from time to time.