why don't you say mixing children of different ideologies isn't a good thing? You only apply mixed as genetic incoming replacements between separate ancestral lineages you define as systematic racism.
all ancestral lineages in this atmosphere are of one species separated by temperate zones equator to either polar axis of rotation. Mankind invented the hypothetical longitudes time differential and latitudes of separate climates to graph the earth's surface rotating perpetually balancing 3rd rock from the star of this specific unique universal position.