[eig]

I graduated from MIT undergrad a few years ago. There were certainly no restrictions on cultural background in the fraternities, though certain fraternities (and some dorm floors) did have reputations for having disproportionate of people coming from a particular ethnicity (e.g. asian) or heading towards a particular career path (e.g. finance, or medicine). FWIW I almost joined a frat that I would've been a minority in, but I never felt excluded while rushing that or any of the other frats.