There is something very elementary that you fail to realize.
Child support is for THE CHILDREN, not the ex wife. That is what alimony is for.
If you were a female and had, say, a 9 year old child to raise, wouldn't it be fair for the father of that child to financially help pay for the child's food, clothing, shelter, utilities and roof over their head?? THAT is what child support is for. You are so silly.