That's true of all the best artists ever.
> They're just there to whitewash away liability from blatantly stealing someone else's content.
That's because that's not a thing. Ownership of "content" is a legal fiction invented to give states more control over creativity. Nobody who copies bytes which represent my music is a "thief". To be a thief, they'd need to, you know, come to my house and steal something.
When someone copies or remixes my music, I'm often not even aware that it has occurred. It's hard to imagine how that can be cast as genuine theft.