Lots of examples, gender identity and requiring ethnic studies (focusing on white male privilege, settler/colonial, putting groups into binary oppressor/oppressed). Also issues with requiring those classes vs not.
(source: I went to a conservative christian school)
1. Gender is a social construct
2. Whiteness is a social construct and in particular has been used as a bludgeon against minority "non-whites" in the United States for a very long time
If you do not believe these things you are the problem. You lack education. You lack critical thinking. You are brainwashed.
Once you accept the simple facts as above, then you can finally explore the consequences.