I understand what you are saying in your first paragraph, vampirequeen.
In your second paragraph, I think there is a misconception because these days most working mothers are not cleaners, factory workers etc. A large percentage of them are university graduates, (ever since we allowed almost everybody to attend a university), and therefore they are choosing a more ambitious career path. Many also have to pay back heavy university loans, so they need to earn as much as possible.
In the final analysis, it is possible to juggle career and children, but it comes at a cost. Divided loyalties between work and the family are emotionally hard to juggle and life as a working mother can be very stressful. I'm not saying that throwing money at childcare is the answer and neither can employers be expected to pick up the pieces. The situation is here to stay, I don't think we will ever return to an age where careers will be ditched in order to have children, but I would like there to be a reasonable compromise.