Sadly, yes, yes, and yes. Most pictures of sororities and fraternities that I see are phenotypically monoracial, maybe with 5-10% not of the same race (and usually it’s 0% or 1 or 2 individuals not of the same race).
My impression is that hazing tends to be much more common (or at least much more severe) at fraternities rather than at sororities. My sense is that in stereotypical Greek life, sororities might be much worse on a student’s feelings of self-image while fraternities might be much worse on a student’s physical health. Both can be very damaging to students’ sense of self-worth. I acknowledge that there are universities where the Greek life is not stereotypical and would love to learn more about them. For anyone who wants to share, there is a thread for it: Colleges with Non-Stereotypical Greek Life
That might be the quote of the day. 