The problem with population-level statistics is that there is no population-level solution to ameliorate differences. And the more one looks at and engages in those population-level differences, the more one gets sucked into the idea that immutable characteristics from birth actually matter at the individual level, and they do not. And the idea of population-level interventions leads to very, very bad places.

Therefore, I agree with Matt that it is unseemly and inappropriate to spend much time with those who want to "preoccupy oneself with such questions", yourself included.