You are making the assumption that behavior would not change in the face of severe disincentives.
The point of the article was that women with a wealthy boyfriend have an incentive to get pregnant, so as to be able to hit up the boyfriend for child support. Remove that incentive, and replace it with a penalty to the woman, and they would become much more careful to NOT get pregnant and be more inclined to want to get married FIRST.
Again, review biology.
They both created the child.
Regardless of the circumstances, they both created the child. It just cannot be said enough times. They both created the child x 673 million times. Why can’t people get this?
If you don’t want a child, then take measure not to create one. These men in the article are being responsible. They are taking measures to (virtually) insure they will not be creating a child they don’t want. That should be applauded.
The alternative is worse ... for the child.