I think part of the point of OP is that if your main concern is DRM (being able to actually own your books) and you also care to a non-zero extent about the author getting paid for their work (yes, authors receive a much smaller share of sale price than they should, but it's still a substantial percentage), then you should try to buy from DRM-free bookshops and only if that fails sail the high seas.

Regarding corporate piracy for AI, I don't think it's just Meta..