WHat you said was that a child's mother provides better care than anyone else, including the father. So, obviously, women who work must to sacrificing their children's care. You said this as if it is indiputable fact, which it is not.
Father, Grandmother, nurseries, nannies, etc. provide very good care and the children flourish just as well as they do under the care of their own mother.
Say that you are staying h ome because you want to. Or because you believe it is best for your own situation. That's fine. But to suggest that those who have chosen another course are sacrificing the quality of care for their children is not only rude and inflammatory (considering this is a thread for working women) but it quite simply untrue.
Some people agree with your statement. Some don't. It is certainly not an undisputed claim.