What a bizarre statement. She makes it sound like it was a choice he made that she didn't approve of.
Exactly. Or a choice that his parents made that she didn't approve of. Ironically, she replicated the very scenario which she appears to mock or, at the very least, question.
It's a situation that "enlightened black opinion" doesn't approve of - she's just sounding a note of sympathy with her "sistas" who have seen a large number of higher quality black men go off to date and marry white women.