What I meant about it being depressing is just simply the thought of us, 7 billionish, confined on that small orb to beating our chests at each other for our entire lives. Can you imagine how depressing it would be to go outside of the atmosphere and look down on it? I really think it would require some serious therapy to come back down. The fact that none of us can leave, except for a short trip into scary unknown death fields of space, and we have to put up with everyone else for our whole lives. And that's what it looks like from space: a peaceful little galaxy with stars.
Knowing that people are starving, committing harm, and parading around down there or eating and reproducing... not mindful of beyond the sky because we don't have any relevance to anything off this planet.
I just don't see how anyone could go out there, glance at the earth objectively, then return and carry on like everything's fine.
Go in to outer space and think to take a picture to put on your facebook and tweet to insignificant people "I'm in space lulz".