The Grauniad article found 1,500 young teachers who found it tough. I'm at the other end of my career and have found it all gets much, much easier.
There are good and bad things about most careers. Teachers go in on a very good salary (especially if qualified by 23 when compared to their peers), there's a very clear progression and increase of salary. Good union support. Excellent job security.
I would be amazed if those numbers about leaving the profession didn't decrease as age increased and I also suspect that those who think they may leave don't.
It's one of those quite unusual jobs where many are happy to never be promoted as it becomes a very different role (management as opposed to teaching) as well as which, the job doesn't usually get harder, you get better at it.
Your narrow view of meritocracy and capitalism just favours those that are incumbered by having babies (i.e. men).
I absolutely disagree. I have been a 'typical man' in my relationship (my mind's gone blank trying to think of a different term) and a typical woman at different times. With DC1 I had 2 years off and went back to work. Different school and 'demotion'. With DC2, I went back to work after a few months. DH resigned (he's an academic) and became self-employed / part time and a SAHP.
There are downsides to both roles. I missed adult contact and being mentally challenged when a SAHP and I missed my family when working. Until we all live in some kind of utopia where no one needs to make sacrifices or work, we need to accept that our decisions have consequences.
I think that my career was set back 5-10 years by my 2 years off. DH says his is affected far more.
I don't think childbearing is a burden. Yes, we can be burdened by our choices and live to regret them but I don't think that's applicable here. It's a fine argument for sorting out child maintenance from absent parents but not for expecting anyone who takes time off from work, becomes inflexible with their availability and works fewer hours to claim that the system is rigged against them.
You speak of children like they're some awful thing imposed on women. I know it isn't waht you mean but it sounds strange. There are plenty of men and women who decide not to have children for the sake of their careers. All other things being equal; they deserve to then go on and do better than me / us in the area they've focused on.