Earlier quoted context omitted.
As far as I know, covers aren't fair use. https://www.legalzoom.com/articles/posting-cover-songs-on-yo... Thousands (millions?) of people post covers on YouTube with no issue, but sometimes people get unlucky. I don't think monetization makes a difference in the eyes of the law (maybe it would for proving damages? I'm not a lawyer.) What's unusual is that he said he got 5 copyright strikes without telling him why. I'…
Looking at his other videos this seems like a clear cut case of copyright infringement, if he's not obtaining mechanical licenses. I don't understand why anyone is up in arms about this.
Because copyright is controversial.