^It is really silly to think this is an issue unique to Vandy and that other southern, 50% Caucasian schools would be much different. I’m all for addressing problems but never for endorsing Duke over Vandy 
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http://talk.collegeconfidential.com/duke-university/1457149-racism-scandal-at-duke.html
^aside from a fraternity’s blatant racism in that article, you’ll see many posters commenting about subtle/overt racism at Duke.
It is worth nothing that Vanderbilt’s freshman class was 63% Caucasian in 2012 and 52% in 2014. Will be interesting to see the 2015 data. I think having a critical mass is extremely important, though who knows what % that might be.
By the way there have been a number of posts in the past few weeks from students and parents alike about non-Greek students finding their niche and not having any regrets about skipping Greek life.