ISA: You don't understand until you see it. I saw levels of social retardedness that were absolutely stratospheric, including extremely poor levels of English from internationals who have allegedly passed English tests in order to go to Oxford, 25-year-olds with the social skills of 15-year-olds, and people who don't know how to park bicycles.
And yes, when I said it was difficult to get involved with university activities, I did include the student journalism etc in that. Can't speak for the Union as I was never interested in being a member and was advised by others that the joining cost wasn't worth it.
You strike me as being someone besotted with the Oxford dream, which doesn't much match the reality. Don't get me wrong, I enjoyed my year there well enough, but more fool you if you've bought into all the shiny advertising. I think you want to go there for all the wrong reasons, and this will only show if you ever have an interview there.