I honestly have no idea what you are on about.
Nobody has said they won't employ mums. Nearly everyone I interview has small children , I have them myself so prefer it.
But i would say at least 50% or more have no child care arrangements in place.
That's the reality. Maybe take that on board?
I ask people when they are available as I like to be flexible and do job share and whatever but people can't even give definite times.