Or least one of them.
But Oxford and Cambridge are, of course, insulated from the same competitive pressures as the top US colleges. Like, they take up something like the same share of the UK system as all the Ivy+ and and a few top LACs do in the US system. And you can’t even apply to both of them!
Can you imagine how much easier Harvard, say, would have it if you couldn’t apply to any other Ivy+ or top LAC at the same time? Not even Yale!
This is a real challenge with drawing comparisons to other countries’ post-secondary systems. The US system is truly unique, and nothing else is even close.