These sort of incidents are possible in any student org or group of young people in college. Going after fraternities is just a knee jerk reaction because it seems right to go after fraternities given the notoriety we've given them in the culture, but I can tell you that some of the worst examples of hazing I've learned of when I was on college took place in orgs like the club rugby team. Those sorts of student orgs also have like zero oversight over any social activity from the university. There is no IFC checking these parties, the parties aren't registered with anyone. The university doesn't even know of the off campus houses where these groups live and party in.
Its easy to react emotionally, but rationally, there is no reason for fraternities to be inherently worse than any other student org or even just a random group of people living off campus and hosting parties. The problems you cite are really broad college problems, and if we continue to just assume that they are solely fraternity problems I don't think we will ever make meaningful progress on any of them.
It's like mass shootings are possible in any country. Well, they are, The Onion is right that there is no 100% way to prevent this. However, all countries but one can prevent 99% of them.
Its easy to react emotionally, but rationally, there is no reason for fraternities to be inherently worse than any other student org or even just a random group of people living off campus and hosting parties. The problems you cite are really broad college problems, and if we continue to just assume that they are solely fraternity problems I don't think we will ever make meaningful progress on any of them.