It's ok for him to argue for extremely racist and xenophobic policies because of where he graduated, his country of origin, and skin color. He's fine burning karma for it

I’m struggling to understand your thought process. Do you think that:

1) Mass immigration of say Bangladeshis won’t substantively change the communities where they move.

Or is it:

2) You agree that this change will happen, but you think we are morally obligated to accept those changes.

The “racism and xenophobia” angle is nonsensical. I’m a Bangladshi in good standing. I make my Anglo wife deal with all our burdensome social rules and norms. But that doesn’t mean I want more of America to reflect my culture! We sacrificed a lot to get away from a country that was governed by our culture. How can I possibly have a moral obligation to accept parts of America becoming culturally like the place we wanted to escape from?