That’s a racist statement. What else could these achievement gaps possibly be due to? Scientifically, race is a meaningless concept. So if we see differences in achievements between various groups, it must mean that one group is being discriminated against. There’s literally no other possibility.
Racists like to talk about “cultural pathology” as a way of blaming Black people for their problems. But if Black people are more vulnerable to these “pathologies” than white people are, that must mean that Black people are more self-indulgent, or less intelligent, or in some way inferior. It’s euphemistic racism, but 100% racist nonetheless