So you're saying only cowards survived the world wars to procreate?
That’s always been my understanding.
No, of course not. But the sheer number of dead young males caused a big imbalance of men and women in France, Germany, Belgium, England and other countries. If you are a young female and cannot find a mate, that tends to skew attitudes toward marriage, progeny, and the future in general. These attitudinal shifts probably helped steer Western Europe away from traditional Christian families with children.