Babies for fun and profit has its price. Or should.
What I'm saying is that marriage should confer a real and tangible benefit on both men and women.
In the man's case he gets children that are recognized by the world as his. In the woman's case, her children get provided for.
By rendering a slut the equivalent of a married woman in law, the value of marriage is devalued.
And this "law", by overturning the common law of centuries, is unenforceable, since it requires government expenditures greatly in excess of any possible recovery, AND because everybody knows (everybody who does not live in socialistworld, that is), that sticking it in is NOT the same act as standing up before God and man and making those promises.