Alternate answer:
Russia lost 88% of the fathers in The Great Patriotic War.
America lost 88% of the fathers in The War On Poverty.
Actually, that’s pretty close for the black American nuclear family, figures I’ve seen from pre- war on poverty indicate that their whole family percentages were at or over 80% before it, and today they are, IIRC, below 20%.
White Americans have fallen to around, or possibly below, 50% I think, in the last few years.