Crickets from these guys on the deadbeat dads and absentee cheats. Not a single word of reproach.
http://www.statisticbrain.com/infidelity-statistics/
Bertrand Russell is a patron sadist of Chateau Heartiste for good reason; when he’s on, he’s quite good at cataloguing the ills that befall those cultures which turn their backs to the gods of the copybook headings. Here he is on the welfare state and its corruption of the sexual market:

If you got a chill reading this, that’s normal. You see how prophetic Russell was — the rise of single momhood, the destruction wrought by the divorce industrial complex, the encroachment of leftoid authoritarianism, the disavowal of kin and country — and you fear what is to come next.
“Marriage and Morals”, Bertrand Russell, 1929. Russell was a Leftist, but moderate by today’s standards, and he was quick to see through the charade that was the Soviet Union, recognising its totalitarian nature even while Lenin was still in charge. Here, he says something would have seemed obvious to his peers, but today, after decades of blanket Leftist censorship and lies, it seems daring, prophetic and right wing. When leftist dogmas confront science, Leftism always loses.