The reason "society" doesn't talk about this issue is because the overlap between one parent households and certain groups is too large. It is the very definition of a "politically incorrect" conversation. The welfare state was the beginning of the end for this country. The people pushing for it were well intentioned but the best you could say about them is they were naive. There were voices against the welfare state from the start and their warnings were ignored.Every analysis confirms this. Even mass shooters are greatly over represented as having a mother-only in the household. When you account for two vs one parent households the outcomes are so highly correlated with this facet it's a sin we don't talk about it more. But, our PC society insists there is nothing wrong with having just a single mom.