Economists, of course - the confounder of discrimination is absent here. Recall: if something appears weird in the US, it's usually due to slavery.

>Economists, of course

For what? "labor participation rate" or "labor participation rate of white men over 20"? The former is regularly cited, but the latter seems like a contrived statistic to make a point.

It’s not a contrived statistic. It’s a way to look at the fundamentals of the economy in a way that’s not confounded by the distinct effects of immigration, etc.