Not everyone has the right to join one. It involves money, grades and personality. It also involves a rigorous time of getting to know your fraternity and its members, both locally and nationally. Of course, there are people who complain, and unfortunately the rules are being bent to accommodate them. I say that is unfortunate because I don't think an organization should have to bend its rules to accommodate anyone.
All organizations are exclusive by nature.
If they aren't, they cease to stand for what they were intended to stand for, and once the foundation is gone, well, the rest will fall soon after. There are a lot of organizations that stand for some insulting and degrading things. There are some that even make you do humiliating and pointless things to join, but that's okay. If you don't want to do them, don't do them, but know it may mean not being allowed to be a part of that organization. Anyone who needs to be a part of something in order to feel valid is insecure, and that person shouldn't make it in anyway.