Don't let these silicon valley stories fool you. Blame extremists and people who exploit gender relations for money. Most americans are decent people who do the exact type of behavior you mention, and its not a problem.

Big money leads to terrible behavior due to power differences. Men AND Women willing to take advantage of less powerful people. I have a female friend who was sexually harrassed by a female VC, and again the same dynamics played out. Its not about gender but primal human desires and power.