Research shows that immigrants tend to bring their prejudices with them, adopting the anti-immigrant sentiments of their new hosts. Middle-class immigrants may fear a loss of status. Others simply seek to distinguish themselves from a stigmatised group.
It could be a perspective thing. Children of immigrants possibly don’t see themselves as immigrants or even adjacent.
One other thought I had was about trust fund kids thinking they “worked as hard as anyone else” for their riches. For example, I remember when Bezos was building Amazon. He certainly did work hard to build that site, but the benefits of the loan his parents provided cannot be overlooked or forgotten. Same thing with Elon… most rich people, for that matter.