Copyright enforcement should be on the copyright holders. YouTube shouldn’t have to build AI to scan for copyrighted material. Copyright holders need to a person verify all copyright claims and be liable for the opposite exact same amount of damages that would be rewarded for legitimate copyright claim.
Disallow the uploading of all content held by RIAA/MPAA-affiliated companies from the likes of YouTube, even if the owners thereof wish it to be there. Fuck them. Let them go build their own platform if they think their work is so god damn awesome. Save YouTube/et al. for works created by, well... You.