How about setting up a welfare system where mothers could not get aid unless they did not have a man living in the house with them. Entire generations were raised fatherless and there was little or no social pressure for the fathers to responsibility for their children.

We you talk about all these terrible things can't you see why most parents want to shield their children from these things if possible? For the bad things you describe there are still a lot positives in the world, probably more than ever. You will get happier and better adjusted kids if you can teach them to focus on those positives and not wallow in misery over things they can't change and probably don't even really understand anyways.