I’m not sure who you’ve been talking to, but I’m a current Durham student on the hill (who picked a hill college because I wanted the location not because I ever felt like I couldn’t be in a Bailey college) and I’ve never heard this phrase or whole idea before. To me as a student, the Bailey and the hill are simply two locations in Durham, perhaps with colleges on the Bailey that are more traditional (and a couple with a reputation of being quite posh but that does not stop a mix of students being there) and the hill colleges a bit more modern. The idea of people not being able to afford the Bailey is also kind of nonsense, as the prices across Durham colleges are standardised, and only vary by type of room/catering, not where the college is. There are many catered hill colleges too. I’m aware that Durham does have issues, but the specific ones you mentioned here are not something I’ve ever been aware of as a student. I am not saying you are wrong in your opinion of Durham here, as clearly you’ve had a negative experience, but it’s something that I’ve never come to experience myself in Durham (for context I would class myself as middle class but did go to a state school in the midlands). Personally, this is something that I feel you should complain about to the university, it upsets me that this is a representation of a university I love being a part of.