Xenia makes some valid points, but the biology ain't goint to change any time soon. Indeed, the effect of legistlation to "protect" child bearing women now produces a path that makes it easier for many simply to leave the workforce altogether.
That's why we seem to see greater job diversity and more entrepreneurial activity from women these days.
Both political parties have the sort of policies you get when 2nd rate accountants explain economics to history graduates who've never had a proper job.
(The tales I could tell of government ministers who simply can't understand basic mathematics...).
Fact is that because of rising car and safety standards, childcare is now vastly more expensive.
For a large % of women, it simply cannot be made economically viable for them to work.
The hole is education. Girls choose dumber subjects at school and university, and when they need to reskill, there simply is not the adult education facilities for them to get back up to a level that makes them employable in a decent job.
It's not politically viable to ditch the folk singing and knitting crap that girls get fed as teenagers, but adult education is a pathetically cheap way of giving women the power in the labour market they need.
That means book keeping/accountancy, Excel, and lots of things that simply don't equate to the Urdu, French, and yet more knitting and folk singing that the system currently provides.