Ok so, I'm not here to start drama, however I would like to say that prejudices and "isms" don't depend on the history of the group. You can be racist to white people, sexist to men and "phobic" of straight people. The history of the group doesn't play a part. We acknowledge the history so that we don't make the same mistakes but a group's history doesn't determine how offended they can be by certain things. If you demean anyone by their race/gender/sexuality or whatever else that's still wrong.
look im gonna have to disagree with you on all but the point that its wrong to demean anyone for anything but things like reverse racism and sexism simply dont exist bc theyr practices put in place by privileged majority groups in order to shame minorities and to remove their power. like. u can be a dick to anyone but reverse racism n such?? isnt a thing