Democrats offer more handouts, so those who are attracted to said handouts are typically going to lean Democrat. Conversely, Repubs don't offer as many handouts. So people who don't need those handouts would be the ones to vote Republican.
People tend to vote out of self interest
First of all, women don't earn as much as men. Otherwise, you wouldn't hear all this "equal pay" movement nonsense. I believe, and this is my man memory at work here ie I'd have to look it up, women are pulling in around 75 percent what men are.
Anyways, you're asking me to rationalize the erratic behavior of young people. Worse yet, you're asking me to rationalize the behavior of emotional young women. It can't be done, because most of them aren't rational by nature.
Young people and women vote for stupid emotional things like social issues....while more rational and wise people vote with their wallets.