I'm surprised anyone thinks there isn't a relationship between capitalism and increased genderism, even amongst right-wingers. Forty years ago, kids all wore similar clothes for playing and had similar toys (barring dollies for girls and trucks for boys). Our Lego was all the same, our cuddly toys were all the same, our bikes were the same - they had to be, as brothers, sisters and cousins all used the same toys and clothes passed down umpteen times.
Now stuff is cheap (thanks, China!), so everyone has the option of pink everything for baby girls and blue everything for baby boys. There is three times the amount of clothing available for baby girls, and even the tshirts have flowers and sparkle on them practically from birth while the boys get more utilitarian wear. (Which is hilarious given that young babies all still just lie around trying to roll over and push up, as they always have since time began.)
I mean, if this hadn't happened in order to get people to buy more stuff and have two sets of everything to push profits up, then what exactly is driving it?