Yes I get this. We are the sum of our experience generally and if these have been your experiences then it makes sense you are distrustful.

I have moments when I feel this way, especially if I read about politics too much.

Is there a way you can expand the people you associate with more? I found volunteering massively helpful in counteracting cynicism within myself, I am able to step out of my usual world and connect in a very different way with a very different set of people. It is my antidote in a way.