There is a strong segregation. I'd argue it isn't just generational though. And it's not new
Look at literally the hiring habits of every Indian manager, or eastern European?
Literally all it took was 1 Indian to be promoted to director of my department,and we have not had a single promotion, or out of cycle raise for anyone that was not a man with strong Indian roots. Not once in almost a decade. If you want up, you must move sideways - which I thankfully did.
My friends employer hired a VIP that was from Belarus, and within 6 months. My buddy found he was the only American still in his entire department.