Thomas Sowell compared the academic results (or IQ. I'm not sure which) of black children of US soldiers growing up in post-WW2 Germany and black children in th

Thomas Sowell compared the academic results (or IQ. I'm not sure which) of black children of US soldiers growing up in post-WW2 Germany and black children in the US. The German kids outperformed the US kids. The systems of education were similar. The racial biases were similar. The difference is that Germany did not have a black subculture. The US has various subcultures - redneck whites (self explanatory), redneck blacks (gangster rap) - both of which are, loosely speaking, anti-math. Adapting teaching styles and "systems of education" to such subcultures will not improve outcomes.