severe lack of fathers in modern society which is the number one reason women abort (Lack of familial/ spousal support )

That is exactly why women should be encouraged to use birth control when having sex with a man who may not stick around. It would prevent pregnancy in the first place. Only when she knows that her mate will stick around and support her that it is OK to become pregnant.

As for promiscuity, well, humans have been promiscuous for millions of years because it is in our genes that we have sex as often as we can in order to produce offsprings. That is why sex is very pleasurable - to encourage us to do it often. Sure, many people have the self-control to resist their desire for the pleasure but there are many who give in to it or are in danger of rape so they should have access to birth control just in case.