I'm inclined to agree with your observation on that. Nurture seems to be a much stronger possibility than nature -- at least, for a lot of people.

So then, if the harmful effects of patriarchy are largely due to social conditioning...then that pretty much OBLITERATES the argument from many self-proclaimed "feminists" that women supposedly possess a greater amount of natural/inherent maturity, skill, and intelligence than men do.

You can't have it both ways.