How long before youtube automatically removes copyrighted music from uploaded videos in a noise-cancelling fashion?
"This option mutes just the claimed song. Other audio, like dialog or sound effects, won’t be muted. "
Though it is marked as beta, maybe it's not reliable yet.
Remove the allegedly infringing music, with a notice that audio has been filtered due to copyright claim, unless the uploader permits a revenue passthrough / share with the copyright claimant.
(This still doesn't address the issue of erroneous claims, e.g., the Adam Neely / Kate Perry fraudulent claim, but it does mean that neither YT/Google nor the claimant automatically profit by the appropriation of another's work and audience-development.)
Ideally the copyrighted portion could be subtracted from the audio in question; without muting the rest.