So the answer is, the Jews replaced the WASPs.
WASPs became complacent and guilty -- convinced that their domination of America was racist and anti-Semitic. So they opened their Ivy League and private clubs to everyone. And lost their grip on power during the 1960s/70s.
So blacks and Muslims and Asians -- thanks both to DEI and Jewish complacency -- are not replacing WASPs. They're replacing Jews.
I’ve seen pictures of prominant people in downtown power clubs. They were all wasps until about 1940. Then you started to see jews after that until by the 1970’s almost all were jews. but then starting about 1990 women a more diverse set of people started to appear on the prominent list of downtown members. Now its a mishmash.
Trump himself broke the barriers that were put up to jews in Palm Beach florida in the 1970’s.