Before I begin, I'd like to say I'll be choosing my words very carefully; I got a lot of neg rep from people for my comments in the last thread, and I think I'm part of a very small mnority on this board who is opposed in principle to selective schools, to say nothing of independant schools.
I can see why people might make parallels between Oxbridge and Eton: both are very elite institutions, with largely the same demographics, both have a long list of illustrious alumnae, etc, etc.
However, I think in Oxbridge's case, this notion of exclusivity is largely a result of its past rather than its present. Today it is a thousand times easier for people from non-traditional backgrounds to get in than it was even fifty years ago. Obviously the system, like all of society, seems to be weighted in favour of one group of peopl rather than another, but to a much lesser degree than previously.
I'm not sure the extent to which Oxbridge initiated the widening access idea, but that's largely irrelevant, and today there is no overt prejudice and I honestly don't think terribly much institutionalised prejudice exists today. However, that isn't to say the system's fair; I for one would like to see a radical overhaul of the admissions process as it is, I feel, unfairly favourable to private schools, the south of england, and the middle classes