The problem here is those attempting cause riots here agree with you, their solution is to take back those lands you say once belonged to them.
I don't know what all happened at that school, and I'm not defending what any of those kids did. I just find it interesting that many people (like perhaps the white kids at that school) say things like "Go back to your country" to Mexicans without considering that maybe they've been here longer than them. Granted, that's often not the case, and I certainly don't support giving back the land or anything crazy like that.