The above point get more to the crux of the issue than the majority of the posts on this thread.
Women can argue until the cows come home about whether their household's division of paid and domestic labour is 'feminist' or otherwise. They can bombast those who split that labour differently from their own household, because for some reason they believe denigrating other women's decisions validates their own. Then the argments are repeated ad nauseam on every thread of this type, like a hamster in a treadmill to nowhere.
It's far more productive to examine the conditions under which these decisions are made. In many cases these are not completely free choices, as evidenced by posts above from women who want to stay at home but their combined finances don't accommodate this, or the discrimination women face in the workplace which men don't have to do battle with every day of their working lives.
A woman who stays at home isn't selling out career women, or vice versa. I'm about as interested in how other women structure their lives as your average man is about the paid vs. domestic labour of other men. (Of course, men don't have to be interested. The whole of society is structured to cater to their interests). It's undeniable that most of the sacrifice is expected to be made by women. This is because our society is patriarchal: it's systemically, structurally and culturally set up to view men as default humans and women as support vessels. It exists everywhere from low-level sexism encountered almost daily to the interior design of your average ladies' lav. Ergo, claims that the 'there is no patriarchy' and 'I didn't make my lifestyle choices based on a patriarchy' are demonstraby untrue. If you want to justify your own decisions by, for instance, sniping that others are 'jealous' of you, knock yourself out. You'll likely be treated with as little seriousness as these comments merit. But denial of the patriarchal conditions under which we all live and which, to whatever extent, inescapably influences these choices, is a lot more harmful to women of whatever persuasion and no matter what choices we make.
If feminism's objectives truly are equality, rather than the childish 'my mum's better than your mum' tone of one-upmanship seen upthread, it's in absolutely no one's interests to deny this reality exists.
Also - it's interesting how other women who make other choices are always the fall guys for this situation in some women's eyes. Why not direct some of this ire toward those who do have a responsibility and/or could effect real change (which they won't do, because it doesn't benefit their interests)? Of course that wouldn't be other women. It would be men.
Patriarchy in action.