mcgoo,
I think it would be a safe bet to say that there are quite a few poorly trained UK students as well.
I'm sure that is the case too.
But if umpty gazillion students are going the US route - then that begs the question why? If on their return, umpty gazillion are so poorly taught that they need re-training then I would presume the schools based here will be more than happy to sell them the additional hours they feel they need.