My understanding is that the protected classes are the only ones afforded protections related to these things.
In EU there is no such list. Anti-discrimination law is quite a bit broader here, but so is also the exceptions.
I was talking about protections, not privileges. The protected classes are the only ones that are actually protected by law. The fact that other groups (white, male, etc) benefit from privileges are a reason for there being protected classes, but they are not the same thing at all.