Yes, Swedes, I completely agree with you. I think we are singing from the same song book here. What is so, so wrong, is that there is an underlying agenda in the admissions system whereby those 'in the know', i.e private schools, grammar schools, interested parents, some state schools, have a much bigger chance of getting into the top universities, for many reasons, too involved to go into here.
It is just so unfair on a bright child in the state system who does not have all the above advantages. Quite often they could fall at the first hurdle by dint of doing the 'wrong' GCSEs, let alone A levels.
Moving on from that, those same pupils with the SAME level of intelligence at a private school will NOT fall at the first hurdle, they will be eased along with all the 'help' in the world. Hence Russell Group universities being full of them. Which is different to private school pupils suddenly becoming super intelligent....that is the point I am trying very, very, very hard to make.
Obviously these are extreme examples but I think that is the basic premise of the OP's point, and one that I agree with (and breathe )