According to a recent study. There have been a number of big studies of voter thinking and behavior, in the past few years. The big question, for me, is how do we use the knowledge they provide to help win elections. I can’t answer that, yet, with anything better than what amounts to just vague speculation.
For instance, “moving from the least identified to the most identified with an ideological label increases preference for marrying inside the ideological group by 30 percentage points.” In other words, if you are a committed liberal, you’re much more likely to want to live next to other committed liberals. But if you just disagree strongly with them about a specific issue like abortion, not so much.
She writes, “The effect of issue-based ideology is less than half the size of identity-based ideology in each element of social distance. … These are sizable and significant effects, robust to controls for issue-based ideology, and they demonstrate that Americans are dividing themselves socially on the basis of whether they call themselves liberal or conservative, independent of their actual policy differences.”
“There’s been a debate within political science for a long time about whether or not the American public is polarized,” Mason said in an interview with The Intercept. “I’m sort of making this argument that as you have multiple social identities that line up together, people hate their out groups more regardless of their policy positions.”