A few counterpoints, as a former Midwesterner and now a West Coaster.... a trans person is more safe in most places on the west coast than most places in the midwest. Abortion will always be legal here while back in my old state... eh, could easily see it getting banned. The level of racism I grew up with was worse in the Midwest. Homophobia has gotten a lot better everywhere but I'll still take the west coast for this. And outside of the largest cities in the Midwest, social life is incredibly difficult to cultivate if you're not a native or aren't a member of a church. Not to mention way more hostility to both transplants and immigrants in the Midwest.

And I know these are all social issues, but those matter too and there is such a gulf in that area between the west coast and the midwest. But even if we get into more material issues... all I know is my unemployment check out here was way more generous than what people I know back in the Midwest were getting. And when my partner needed to take it easy in a difficult pregnancy, my state paid her to be at home and then after the birth spend like 3 months with the baby. Back in my old Midwest state she would have gotten jack shit until the baby came and then after 2 weeks would have to go back to work.

Now, I'm not saying socialism has a better chance of taking root here than the Midwest or even the south. I honestly don't know where I would say that has the best chance of happening. But I will say, if a comrade from another country wanted to move to the US, and that comrade was anything other than white and cishet, I would strongly recommend they live on the west coast.

Edit: to clarify, I think all of the US sucks and I agree with the idea of making it all red, so these are some pretty marginal differences between states I'm talking about here.