The truth might be a little more ironic; races, and race differences, aren't a problem becuz the circumstances under which such differences conflict and are made meaningful (culture clashing) prolly won't ever be changed enough to resolve those conflicts, so it duddint matter that these conflicts are happening.
An example is black people in ermerica. I could reduce every single 'problem with black people' that anyone might have down to the circumstances created by western capitalism, and argue that those 'problems' wouldn't exist in a marxist society. Every one of em. Without exception.
Black folks were brought to america for the wrong reasons and in the wrong circumstances. Black people are now the most significantly troubled (and troublesome) race in ermerica due to the peculiar circumstances created by capitalism. If there is anything disagreeable about black people, those disagreeable things are utterly exacerbated by capitalism (the sociological and economic conditions, specifically).
Now the irony is that if
there are meaningful differences between races - say one is statistically smarter than another - in the 21rst century that intelligence difference should not be enough to result in such a yuge class and culture disparity between blacky and whitey. That is to say, if black folks is gettin in more trouble, it's not becuz they dumb, but becuz the environment is not such that dumb folks can get along without causin trouble. Exacerbate is the key word here. In the 21rst century u should be able to not have a 100 IQ and still be a positive and productive member of society. But in a class based society that functions economically by exploitation, a race that ain't the brightest is gonna have some serious problems. Again, not becuz they ain't the brightest, but becuz they in a capitalism.
U can't change what u are becuz u are what u is
. But u can change the circumstances in which u is.