It's not that women are inherently leftist. It's that leftism is inherently female. Socialism, western marriage/alimony laws, equity for people who are bad at their jobs, absolute government authority, removal of personal responsibility. These are all women things, and when you have a woman dominated society you get leftism. It's not about training women, it's about having a functioning patriarchy that keeps them from ruining their own lives (and the world).