Opinions are often based on tribal affiliation and accidents of history: https://science.sciencemag.org/content/311/5762/854 (academic) https://arstechnica.com/science/2019/09/are-your-political-beliefs-principled-or-peer-pressured/ (popular) This comes as no real surprise to anyone following American politics but it is good to show it empirically. #tribalism #politics #psychology