I think @statesmom just has different cultural expectations. If it is the norm in the US to get an educational consultant for Ivies, so be it. I have friends who are internationals (Indians, Singaporeans, living in Dubai etc) and they are also doing it. Because their DCs are classed as “international students” in the UK, of course they are choosing the better funded Ivies over top unis here. Here they would have to pay overseas fees to subsidise everyone else, because they are not tax resident here, so US uni is better value for them. Like @statesmom explains, the endowments make for nicer facilities, more course options etc. - far more choice.
So I think I understand what @statesmom is saying. And I suspect therefore some of the kids at eg Sevenoaks School who can cope with the IB and are all rounders and doing service and extra curricular and would have to pay overseas fees too at e.g Imperial or Oxbridge, may also choose a top US uni. In addition, UK unis are not great at giving IB the full credit. We looked into it as an option for one DC because it sounds amazing, but from a UK uni perspective and given the huge workload, it does not make much sense. The research shows IB students do really well at uni, but they do not do as well getting into top unis so that is a failure of our uni system, in my opinion.
And perhaps the path to aspiration and success in the US for an international person is now better? So Indians/Chinese/Middle East rich people prefer those unis now?
The game in the UK is different. You have to be understated, send your DC to state school and play an entirely different game than in the US. Maybe @statesmom just did not appreciate that and so regrets not opting for Eton which is also a more centrist place, politically speaking. Westminster School has always been a little left leaning. Perhaps it infiltrates the teaching and he or she didn’t like it much?