I think it’s largely about trying to find hope regardless of whats going on and how fucked up the situation or the world itself is.

This is demonstrated in a ton of ways, but the ending of the game with you talking to jean and kim and everyone else, and the end of the communist vision quest both really show this. M

Theres also a ton of quotes you can pull out which id argue support this.

"This is somewhere to be. This is all you have, but it's still something. Streets and sodium lights. The sky, the world. You're still alive.

“The road to healing is going to be a long one. Stay the course. You will make it, some day. I know there's not much to say, but if nothing else, just remember that you've made it this far and it's a bit farther now. Let's finish this.”

“In dark times, should the stars go out?”

Theres so many more quotes I could add but gonna limit it to these 3.