I did not say who or what creates the patriarchy - what matters to feminism is that women have to be seen as a disadvantaged group of people.

As for gender and toys, obviously industries don't usually have our best interests in their hearts, they care for themselves. One theory I have heard is that by creating gender specific toys they can sell more stuff. Same goes for advertising. To complain about advertising (and gender branding of toys) seems a bit silly.

The question is however, are we victims to advertising and toy industries? Feminism seems to think women are too weak to find their own identity. (And boys, too - but feminists seem to think the boys world is more desirable somehow).

Should we strive for censorship in toy products? That is the real underlying question? Should there be a law against using pink in toys? Of course no feminists thinks they are striving for such laws, but it is what they are effectively asking for. Personally I think it would be a bad idea to regulate such things. Feminists tend to think they are actually fighters for tolerance, but they are not - they fight for intolerance. Because if some girl decides she wants to paint her room pink, shouldn't she be allowed to do that, too?

I have no gripes against female self-help circles encouraging each others to use clothes and toys in other colors than pink, or encouraging each other to study maths instead of gender studies at university. If they think it is important to them, why not - they can do whatever they want. That is not what feminists are usually doing, though - instead they complain that they are victims of an evil (patriarchy controlled) industry that determines their gender roles against their wills. So they are the victims again, calling for daddy (in the form of the government) to rescue them instead of making their own fate. I can't bring myself to respect that.

As for gender being learned or inherited - it seems unlikely to me that preferences for pink are inherited (indeed historically pink used to be the color for men, or so I have read). However, there are undeniable biological differences between men and women. As I said, those create different incentives. For example sex is much more risky for women than for men, therefore women think twice before having sex with somebody. Having children is a much bigger investment for women than for men. Those things are bound to have an effect (on average). Also while you are pregnant you can not easily go and fight a war, or plow a field. That is just the way it is.

And as I said, if you are born as a man, you can not simply decide you want to live like a woman and count on becoming a stay at home dad. Why would women bear your kids AND work for you, too? On average women will want the man to work in exchange for providing the birthing service (which, as a man who has witnessed the birth of my son, I find fair enough, birth is no picnic). The other way (live like a man if you are born a woman) is much easier because men don't get special treatments in society, in fact I think there are some cultures where women can decide to live like men and forgo the advantages women enjoy - they then have to wear men's clothes for the rest of their lives (see http://petapixel.com/2012/12/26/portraits-of-albanian-women-... )