If your friend ended up practicing in the United States, there are many areas of the country where he will be saying the exact same things about white people born right here. Universal across the world, I suppose.
Pockets of poor, low IQ, low impulse control people exist in the USA yes.
Your pointing that out is both pointless and meaningless.
Around the world there are whole countries comprised of those type of folks, like Haiti or the DR.
The DR and the USA are as different as two countries could possibly be.