Women are inherently disadvantaged on a free market. Because they need to take breaks during pregnancies and the time after, women need more security and support. They also feel more connected and responsible for the newborn than men (who seem to "run away" more often than women) and thus have to bear more risk. Hence they are more "social" and are thus drawn to models of society many here would call "socialist".
The insensitivity of many libertarians and ancaps for this set of problems is one aspect that scares many "normal" folks (and leftists) away. I don't like the "big state" solution either, but the "free market" fails to resolve this. Also, women might complain that raising children is hard work, and an undoubtedly necessary service for society, but it is unrewarded by a market because what they do is taken for granted and the market cannot really provide a way to compensate them.
So until there is a satisfying solution for this, I predict we won't have libertarian/ancap "utopia".
And I like it this way.
If you take a look, women always worked when they had to, and always do not worked when they don't had to.
Today is the exception, and it is resulting mostly in negative things instead of positive...
Also, I know a bunch of very old company owners, they all claim that they hired women without problems 50 years ago or so, because there was no benefits for them different from men except for 6 month paid leave for pregnancy. Now they invent all sorts of excuses to get rid of women on the HR because of all the "rights" women won, making them too dangerous to hire (ie: fire a woman, get sued for discrimination... and this is only to start...).
While before women could do whatever they wanted if they were qualified, they are now being forced in positions that already have lots of women (middle managment, HR, school work, hospital work). The women that LIKE those positions claim that they have a great victory (And indeed, in some parts for them it is, middle managment already have 70% of it female and research in the US show that women aged from 20 to 30 get 110% the wages of the male counterparts), but what about women that for example wanted to work as forklift operador? (I know one! she is very funny and nice)
Remember, some things will not change about humans, doing laws regarding those things tend to have the effects opposite... There are even a scientific paper (later I will see if I find it) from a feminist that is wondering why the pay gap is getting WIDER in nordic countries, and she concluded that the state intervention to give more rights to women is making women there more dependant on the state and that companies are fighting the state and paying women less and hiring less.