Never mind that Republican fought and died for civil rights when it wasn't popular, and Democrats only supported it when it was popular. I'm also waiting for them to paint horns on the GOP.
What? Republicans may have fought more against slavery, but opposition to slavery was popular at the time (at least in the North). I don't think the activities of the parties decades or especially centuries ago make much of a difference to today's votes.
What? No. Women if anything are a little more socially conservative on average than men. The same goes for many Democratic racial minorities. Economics has a lot to do with it.