<p>The same reason that sororities do not take men and fraternities do not take women. They are trying to find people like them. Even within the racial profiles you will find that some houses have completely different types of students who are pledged. Legacy is a big thing with most houses. If your father or grandfather was in, your chances are almost automatic. Some houses look for big numbers, others are more exclusive. Ultimately, it is the current membership that decides who will be offered. Regardless of which groups you are talking about, they all tend to invite people the most like them. People also tend to rush houses that are most like them. </p>
<p>The thing is, a good well-run house can tell when someone is rushing just to make a point. It is hard to go ‘undercover’ rushing a house and do a good job of sounding sincere.</p>
<p>Freedom of association means that people can freely choose to hang out with other people like them. If you don’t like it, don’t join them. There is no way to force people to get along with everyone. Would you be comfortable being the only white guy in an otherwise Hispanic or African-American greek house because the college or government said they had to let you join? That would be comfortable. (not) There will be some individuals who ‘fit’ into houses that are predominantly another race. But it has to happen organically. You cannot try to legislate it.</p>