I can’t find the screenshot right now but the left leaning women skew highly educated, ie they spent longer periods of time at University. The longer they spend there, the more pervasive leftists ideas become, the more entrenched a voter base they become. Abortion is a big topic for that cohort and it practically defines the politics for many of these women, they’re essentially single issue despite the fact they then gobble up viewpoints and ideology from the left side of politics, those topics pale compared to abortion which they treat as some hybrid of healthcare and self-autonomy. US politics is to a large degree being held captive by feminists who want to abort unwanted pregnancies.