Don't put words in my mouth. I didn't say anything about fixing human endeavor. I am only asking what alternative explanation you offer for the demographic discrepancy, if not structural inequality.

As for measuring the demographics, well, this is a US-centric article, so the Census would be a good place to start. Or Wikipedia: https://en.wikipedia.org/wiki/Demographics_of_the_United_Sta...

Non-Hispanic whites make up about 57% of the US population. Roughly half of those are males, or around 29%.

Now we return to the question at hand: why do white men make up a very high % of puzzle setters, despite being only ~30% of the population?