i think male infertility is probably less of an issue when we consider that most people born now, do not want to have kids, based on the pure fact that it’s too expensive, time consuming, and grueling in the modern era.
Unless that’s what you mean by male infertility. But last i checked that’s not what that means. Perhaps even male infertility is going up because people want less children? Sign of the times sort of a deal, who knows, science is fucked! Or actually, it might be a result of better medical services, allowing people with worse fertility to have children now, when they previously wouldn’t have been as likely to have children. Perhaps a result of decreasing infant mortality. Though i frankly doubt that’s a significant factor.