Let's face it, almost all immigrants these days aren't exactly high IQ, and they aren't even immigrants but invaders. SF aside, in an ideal society low IQ people know their place instead of governing high IQ people.

On the matter of marrying someone from another race, I wouldn't fault a white for marrying a high IQ asian, but africans and pakis don't sound like high IQ candidates. If a place is already a shithole, turning it into an african shithole frankly sounds even worse.