"As for care of ten year olds, yes many governments globally will be aware that as there is a greater amount of care of children of all ages by mothers and as a consequence provide additional workplace assistance to mothers ... This is exempt from rules around sex role stereotyping."
I have absolutely no idea what you're talking about here. Certainly my workplace (which is extremely family friendly) provides extra assistance to new mothers in that we have, eg, a mother's room in which to express milk, etc. but otherwise they provide benefits THAT ARE AVAILABLE TO ALL PARENTS IF THEY WANT THEM (eg parental leave). Which is entirely appropriate. I would be horrified if they offered special assistance just to mothers of any age child in my work because it would cement the idea in the workplace that fathers are committed to their jobs, mothers need special help and special arrangements.
In terms of things like assistance getting lone parents back into the workplace, again, those are offered to parents, not mothers (even if the majority of lone parents are women).
Also I am genuinely baffled by the "women having control of reproductive choices throughout history". So all the countries where women don't have access to contraception or abortion, well, it's fine, because "birth spacing is commonly practiced". I grew up in Ireland just before the really widespread availability of contraception and (while it was getting rarer) some of my peers were one of nine or ten children. One of DP's classmates was one of twenty. Go back a generation and it's even more common. I'm sure all those women didn't choose to be mothers quite so many times.
And you really didn't understand the thing about unconscious bias/assumptions. Yes, lots of people don't do things because they have been explicitly told not to. But lots of people do them anyway because it wouldn't occur to them that it could be wrong. Like the employer and that solid assumption in their head that women don't come back after maternity leave. Oh, they might not get so far as stating out loud, or even to themselves, but strangely enough they might find lots of other "good" reasons to reject a lot of female candidates of childbearing age. I am almost charmed by your idea that nobody is sexist anymore because they have been told not to by HUMAN RIGHTS AND DIVERSITY.