The case can be made that Google does not have an effective monopoly on web video actually.

For that matter, what about the labels? Is there not something like copyright misuse that prevents them from leveraging the copyright on music into a contract for the suppression of fair use?

Or what about these guys: http://en.wikipedia.org/wiki/Fashion_Originators%27_Guild_of...

"abusing its effective monopoly" implies YouTube stands to gain by deleting your videos. In reality, I think they only stand to not lose.

Not if someone self hosts their video.