There is 100% pirated content on Youtube - not too much from Hollywood and you won't find anime on it - but if you watch foreign language media, there is very often the Official account and then like 4-5 others just blatantly providing the identical content, which is promoted alongside the legitmate content, so its fairly easy to start watching legit stream and find yourself not watching legitimatly a few episodes later, playlists are huge to prevent that.
The problem with this is the piecemeal enforcement all but proves they only care about stuff they get a cut of and that fact became more clear to me recently when I was watching a random drama made in Asia that I wont name due it being one of the best historical and educational shows I've ever watched - but there was a scene (this was made in the 90s btw) that was entirely innocent, not sexualized - it was done humorously, but I'm not a pdf file either so - anyways, there were fully naked children, with absolutely no censorship, on Youtube - 100% long enough to be noticed by their trackers - they obviously just are not reviewing certain content, at all.
I don't care about piracy at all - I'd still use Youtube if it was the primary source for pirated content, the idea that there may be some obscure content, that seems totally fine, in a language nobody really uses - except for Epstein types, if ever that was discovered - that Youtube had become a haven for pdf files bc of lax application of standards - I would want Youtube split away from Alphabet and force sold on the cheap to a more responsible owner (like Tiktok minus the responsible owner part) - plus an enormous fine.
I didn't believe that such content could exist at all on the platform - until I literally saw with my eyes that it obviously can.