I'm going to say that people in general are good.
I don't know if I ever started a thread on that, like I planned to. The short and crudely stated form of the truth is that "conservatives" believe people are essentially bad, and leftists believe people are essentially good. That's why "conservatives" prefer a limited government that checks the worst elements, without giving anyone too much power. It's why we believe in decentralized government, and letting everyone's self-interest and greed balance each other out. It's why the Left believes we can all be shiny, happy people, once we get rid of the corrupting influences of capitalism, the patriarchy, and other such foreign elements. That's why they believe they can bring about sexual equality, if they can just get rid of the "toxic masculinity" and "sexism" that religion forces onto us. One could go on.
There are, of course, counter-theories.