Earlier quoted context omitted.
They can't be racially diverse if they are white. If you mean educationally diverse, you're just trolling.
So White people are all one race, now? Germans and Slavs and Scandinavians and Italians are all the same? When did that happen?
Always have been, pretty much since the classic idea of defined “races” was formed, in early race models—whether in two-race (Caucadoid/Mongoloid), three race (adding Negroid), or five-race (white, yellow, brown, black, and red) models—whites were, alone or with some others, one race.