Support monies collected are expected to be used for the child's expenses, including food, clothing and educational needs. They are not meant to function as "spending money" for the child. Courts have held that it is unacceptable for child support payments to be used to directly benefit the custodial parent.
Child support - Wikipedia, the free encyclopedia
Americans are so enamored of equality that they would rather be equal in slavery than unequal in freedom.
Alexis de Tocqueville
The victim of this awful woman's con job is not the father of three of those kids.
He did not agree to adopt this woman's other kids. He was lied to. It would be sick, and wrong, and evil, to make him continue to pay child support for offspring that some other men made with his lying, unfaithful wife. There is no reason to hold him financially responsible for those kids when he had no part in their creation.
He would have to assume that responsibility on his own, willingly, for that to be the case. This sort of fraudulent misdeed ought to carry serious consequences.
Which may or may not be the mother's fault also, because she could have hidden the truth from the children's real parents (and probably did)... Still, those men should be forced to be responsible financially for the children they created.
What is sick and wrong and evil is letting a father walk away from his obligations to his children because his marriage dissolved.