Pornography, Sexual Promiscuity, and Abortion has by and large been a net positive for society because they have effectively weeded out the female individuals who are unfit to be mothers, and essentially made broadcast to the world their unfitness to procreate, and has spared many from associating with these individuals as well as in theory sterilizing highly promiscuous, and abortive women.

Over time the genes which caused these behaviors to be normalized will be removed from the gene pool overtime, since no one would want to reproduce with irresponsible women.

Before men married, and produced offspring with these women which allowed unbeneficial genes to replicate.

But now we know them by name, heard the stories about them, and for the poor sucker who ends up with them, they won't have children, sparing the man from being in a committed lifelong union with this woman, as a man who wants offspring would quickly divorce the woman.

And those who are tolerant of all this will both pass on childless, and happy, sparing society from hosting their parasitic offspring.