Even before Dobbs/Trump Democrats did much better with women compared to the GOP: Why?

[Tintrlvr]

Biological women are pre-wired to generally be more caring towards others since their job was to carry the baby and then in most societies they would be the most active caregiver towards the baby. Men on the other hand generally went out to hunt, and were far more exposed to competition with other men. They were also the protectors of their family or community.

"Men Are From Mars, Women Are From Venus killed us all" exhibit #463728

I do think this is stupid, but there is something to women being more left-wing/liberal and less right-wing/conservative than men in voting patterns across the developed democratic world, from Sweden to Taiwan.

[Skill and Chance]

https://fivethirtyeight.com/features/women-won-the-right-to-vote-100-years-ago-they-didnt-start-voting-differently-from-men-until-1980/

A really good article from FiveThirtyEight. It suggests that when (mostly white) women gained the right to vote, they tended to be wealthier. Many women continued to not vote, because they had grown up believing that their gender did not belong in politics, the article states. By the 1970's women started finally voting at the same rates as men, but did not start leaning Democratic until 1980, when the Republican Party railed against the ERA and shifted rightward.

That makes a lot of sense if you ask me.

This was true early on (though surely not as late as 1970), but the class impact went the other way.  It was generally upper class/upper-middle class women who were taught that they should be over there raising the children.  Working class women and particularly farm wives were more likely to be involved in most or all of the same activities as men and be treated as equals earlier on.  This was especially true in the West.  This also meant that the movement for equal rights for women started off with a rural base and urban opposition!

When California held an all-male referendum on whether to put women's suffrage in the state constitution, it lost dramatically in the San Francisco Bay Area (the oldest and most established city at the time) and only tied in L.A., but narrowly won statewide because of near unanimous support from the rural counties.

https://www.sos.ca.gov/elections/celebrating-womens-suffrage/california-women-suffrage-centennial 

[Skill and Chance]

Biological women are pre-wired to generally be more caring towards others since their job was to carry the baby and then in most societies they would be the most active caregiver towards the baby. Men on the other hand generally went out to hunt, and were far more exposed to competition with other men. They were also the protectors of their family or community.

"Men Are From Mars, Women Are From Venus killed us all" exhibit #463728

I do think this is stupid, but there is something to women being more left-wing/liberal and less right-wing/conservative than men in voting patterns across the developed democratic world, from Sweden to Taiwan.

That's true on the issues that are being debated today and from the position that women occupy in society today.  We don't know how a 23rd century woman would vote on teleportation regulations. 

Part of the shift is probably attributed to the proportion of women who preferred to work as little as possible after having kids.  When deciding who to vote for, they would obviously have a huge incentive to keep their husband's income as high as possible.  In the 1920's, this would have been a clear majority of American women, but it has since fallen to perhaps 10-20% at most.

So you get class based voting where husbands and wives generally pick the same side with the goal of keeping the family income as high as possible.  Recently, with the decline in "housewives" and no equivalent rise in "househusbands" and with marriage after age 30 becoming increasingly common (meaning the average person will vote several times while still single), it's way more common for men and women to have diverging political interests now.