The problem is, YouTube was designed from the beginning to ignore copyright infringement, so they never put anything in place, until they got too big and the cost of lawyers and fines outweighed putting in a system to allow for some feeble sort of takedown.
This is typical of Big Tech, ignore the law, until it actually becomes more expensive than doing the right thing, by which time, they are at such scale, nothing really works, so they throw their hands up in the air and say, "oh, woe is me!" And you are stuck with some half-arsed system that doesn't help anybody, apart from Big Tech itself, because it saves them lawyer and fines money.