This isn't a matter of contentment. Some people are just not cut out for anything better. They're simply not bright enough. Black median IQ is 80, whereas white median IQ is 100. The more we discover about genes, the clearer it's becoming that the Calvinistic notion of predestination might not be so far fetched from a genetic perspective. Successful people think they get to where they are purely on the strength of hard work. But the reality might be that they not only get their intelligence from their genes - they also get their stick-to-it-iveness from those same genes. You can tell some of these football players to get their act together all day, but the reality is that the black players who generally end up in trouble are simply idiots savant who can throw or receive a ball well but can't be trusted with their own finances. The distance between an 80 and a 100 IQ person can be as much of a chasm as that between a merely competent scientist and Einstein.
That’s a great big elephant in the room, huh.
The idea that blacks will prosper if left to their own devices isn't necessarily borne out by the evidence. There's an entire continent of blacks with serious natural resource endowments, and yet most of them are way poorer than the North African Arab countries without oil. We established an entire country for freed slaves in the northwest corner of Africa and called it Liberia, and yet the country is in the bottom 5% of the nations of the world, GDP per capita-wise, despite over 100 years of Americo-Liberian rule.