They are aimed primarily towards "Chicano Studies" type classes. I attended one of these classes while in college (mainly out of curiosity) and found it to be the equivalent of a Hispanic "Madrassa". Right off the bat, the professor started talking about how the western US was stolen from Mexico and how "We", the Hispanic people need to unite and take it back by ANY MEANS NECESSARY. He also spoke about how the weak and evil white man should not be trusted and is out the destroy our great race. In the few days that I was in that class, I heard nothing but hate speech and was pressured to join La Raza (don't even get me started on that group).
You may be able to argue that people have a right to attend these classes, but not on my dime. That is what private schools are for. You don't see Jewish studies in public schools do you?