Could we not just simplify the debate and say that for some people being at home with their children rather than paying someone else is preferable and for some going out to work and contributing to their family that way is what they do.
Whether it is by choice or not.
I get fed up feeling guilty for having wanted to stay at home and look after dts. But had I gone to work my entire wage (and I did calculate it at the time) would have gone to paying someone else to do the job I felt I could do better myself.
I have some friends who work, whose children are cared for by grandparents etc., who wish they could stay at home. And I have friends who enjoy what going out to work offers them (interestingly the option of SAHD wasn't thought about.)
What matters for the child is that their parents care and love about them and that is that. That is what will nourish them as they grow.