They literally are the world's biggest music conglomerate and own roughly 1/3 of the global music recording copyrights. Sony and Warner own huge chunks, as well, but Universal goes after content creators trying to bully them into signing over their content rights, even though it is fair use (and they've ALWAYS lost in the courts). What's interesting to me is, they've also gone after the original artist singing the song, which is totally not their right as all. Lyrics are published via BMI or ASCAP or some similar agency and anyone can interpret them, as long as done in a place with a license to perform them.
So my point is, the creators would have to give up at least 1/3 of their global content, and it is probably closer to 50-60% of US content. Break this bitch up, Congress.