I live in a pretty deprived, majority-black part of the west side of Chicago (i.e., most of the west side) and not only are there those stupid ATMs, there are "buy crypto" ads on the benches @ bus stops. I assumed it's somehow a grift on poor people, like payday loans or whatever, in this case as john says just more grist for the mill, tho who knows. does bring to mind the infamous OneCoin crypto scam, tho that was just a regular MLM pyramid scheme.
I also think you're dead right that the discourse around crypto is a mess bc it brings everyone potentially into the same room, and that john is right that a lot of the left anti-crypto has to do with the odious ppl frequently attached to it rather than opposition to crypto per se. It's not like those left etc folx are big fans of fiat currency either.