That's what I've been saying about people not assimilating when they come here. They stay in their enclaves and don't bother entering the melting pot. I once had a Spanish-only speaking patient and I can get by pretty well, but she said something I didn't understand and actually had the balls to ask me "why don't you know Spanish?"
When 3 out of every 4 black children are born to a single mother, you have a gigantic problem. And as you said, no one's addressing it because it's considered racist since "that's their culture"...that came about in just the last 40 years.