Two different things. You look at the newspaper, you walk down the road and see examples of human behaviour, condition by our upbringing, by our culture. Momentary glimpses of what humans really are peak through, intermingled with our habits, yet distinct.
I think human nature, or at least the potential for human nature, is a lot better than what’s on display. “That’s how we act” doesn’t have to be “that’s how we have to be.” We don’t have to resign ourselves to the (worst) examples we see in the world, because there’s something better deep down inside us , and we can choose that.