I mean it's not literally about the piratebay or libgen, or napster or whatever. I think historically it's true to say that it never really mattered how much effort they invest in destroying piracy. The fact that storage gets cheaper, yet text won't grow in size over time also makes me rather optimistic. Piracy was also always a decentralized effort by like-minded individuals, it's about the idea, you can arrest people, seize a name and people die, but an idea will never die.

Piracy of books in particular has been around since the 17th century btw, if that helps to convey why I'm not worried.