As for what the video had to do with the class, well nothing. But Swingers and The Breakfast Club don't have anything to do with Speech either, and we got to watch those movies in that class.
As for using the class to bash Bush and push political views, I can't think of many professors who DON'T do that. Take my Geography professor this year. He used the Kashmiri earthquake as an opportunity to talk about how Bush only lent them 8 hour helicopters to deal with relief out of the hundreds we have in the region, and how the Bush administration has screwed up on just about every disaster relief case so far.
Oh, and the Ethnic Studies guy is never being fired. He is very very popular among students, and the university is so liberal it distributed "voter guides" that were published by an openly communist organization.
Wow, your university sucks ass.