By "African-American" I meant anyone who claims to be an African American, which has become self-designated in many cases, representing a culture more than skin color.
Yes, there are long term implications - for the kids and grandkids. They would have a tougher row to hoe. I would not mind my kids marrying a Korean, Japanese, Chinese . . . person because those cultures have a higher standard with respect to education and work ethic than do most white Americans.
Yes, I have known Africans who are smarter, harder working, and more moral than I am. They are the top 10% of their bell curve, whatever the reason may be.