I've seen something similar from the other side except it appeared to be religious discrimination. We had a new CTO who was Pakistani and not a single candidate

I've seen something similar from the other side except it appeared to be religious discrimination. We had a new CTO who was Pakistani and not a single candidate we interviewed made it past a phone screen with him who wasn't Muslim. They were primarily Pakistani as well but also Iranian. It was a very bizarre thing to watch and my coworker who reported this to HR was reprimanded for "racism" and let go soon after.