This thread by OP is absolutely ridiculous and clearly has some sort of agenda against Warwick. It will take me a 10 second Google search to find any number of similar incidents at any university in the country, which is saddening in itself, but don't tarnish Warwick because of one incident and label it as having a 'culture' of racism. I myself am an ethnic minority, living in accommodation with predominantly white students and I'm loving it!
Maybe appreciate the fact that it was STUDENTS OF WARWICK who publicised the matter so much on student newspapers and such to bring it to the attention of the university, otherwise it would have gone unnoticed, like it does in most universities.
Don't try and spread your clear bias to others.