“And in all likelihood those children all live in the same geographic area. I wonder what the odds are of two of them meeting and, not knowing that they’re half-siblings, ending up in a relationship that results in marriage?”
I’ve often thought that this is most likely the case with welfare babies as well. Gubmint becomes the daddy, and the so-called men who sire multiple children on multiple welfare queens are not held responsible...(more cash for the mamas). I wonder what the results of an epidemiological study - looking for birth defects - would be in the high-welfare areas...
Probably no one wants to look.