Most kids get told (endlessly) that the world sucks, is going to suck worse for them, and they can't do anything about it. It hard to see a way not to be depressed in those circumstances.

If its true, and the world is doomed; then they should be depressed. If its not, then what better cover for them to adopt until they get away from the despairing adults around them and can actually begin to act of themselves for themselves.

Dude, change the title from "Kids Are Not Okay" to "The Kids Are Not Okay".

The first case suggests to not have kids while the other talks about well being of kids.

Kids are fine. Always have been and always will be. It's the people saying "kids are not okay" that have the problems.