It really is a fact that liberals are much higher than conservatives on a major personality trait called 'openness to experience.' People who are high on openness to experience just crave novelty, variety, diversity, new ideas, travel. People low on it like things that are familiar, that are safe and dependable.
Jonathan Haidtscience is a smorgasbord, and google will guide you to the study that's right for you.
Jonathan HaidtOnce you understand the power of stimulus control, you can use it to your advantage by changing the stimuli in your environment and avoiding undesirable ones; or, if that's not possible, by filling your consciousness with thoughts about their less tempting aspects.
Jonathan HaidtMany species reciprocate, but only humans gossip, and much of what we gossip about is the vale of other people as partners for reciprocal relationships.
Jonathan HaidtIf you have a personality predisposed to liberalism, you might gravitate more to the artsy crowd or the anti-establishment crowd. And then those peers will affect you, and they will give you values, and you will copy them.
Jonathan Haidt