There are two main reproductive strategies for men. One is the psychopathic dirtbag way of pumping and dumping a lot of females without contributing anything other than sperm. The advantage is that you can have a lot of children and though they lack paternal and family support, some of them will survive to reproduce. The other strategy is the nice guy one of impregnating only one or a few females and spending resources raising the kids, which I would be genetically inclined to do. Historically females preferred the second type of strategy for obvious reasons. However, government policy now gives all the reproductive advantages to females reproducing with dirtbags.
Evil Western regimes do this giving a huge amount of welfare to solo mothers, giving high paying jobs to females, providing police protection to adulterers and denying decent men stable employment so they can't be relied upon to contribute much even if they wanted to. This ensures that females have all of the reproductive advantages of breeding with dirtbags with none of the corresponding down side, so females will find dirtbags more attractive than decent men. If you worked out all the resources that go into picking up after irresponsible sluts, I suspect it would amount to most public and corporate spending in the West.
It's more or less a never ending cycle. Because the government is providing them the resources. In the event of scarce resources, then people might revert to the latter method. And some nice guys can be cuckolded by dirtbags, so there's no guarantee.