The correct answer is that diversity is a bad. We can be genetically diverse if

The correct answer is that diversity is a bad.
We can be genetically diverse if we are culturally homogenous (full integration)
We can be culturally divers ANd genetically diverse if we can create our own polities.
But the postwar pseudoscientific attack on sex, class, cultural, and race differences was another utopian fallacy.
There are vast differences between the sexes, classes, cultures, and races that MUST be expressed as differences in demand for different behavior.
WHiteness (truth before face, science, rule of law, democracy ) is an extremely costly behavior – the most costly culture on earth – that is only possible for a high trust homogenous polity. We are failing at integrating people ‘outside the range’ who are able to integrate into that culture. so we are turning the west in the ‘the same sh—holes that people came from’. And no this isn’t an opinion. it’s a measureable change in every aspect of personal, public, economic, and political life.

Why didn’t india, central asia, the middle east or sub-saharan africa create high trust modern societies? Why did only japan and western europe do so? These are the two least ethnically diverse groups in the world with navies – and navies provide high return on capital, drive trade, and innovation.

Athens navy, Rome Marines, Britain Navy, America Marines…
Sparta Army, Germany Army, China Army, Muslim armies…