Thinking other planets are key to an utopian reality is just humanity doing a "geographic:" wherever you go you take yourself with you. Right now we'd mess up other planets as much as we've messed up this one. I hope for their sake we can't settle there til we're more enlightened

I've always thought that space travel was kinda retarded. I know that word is now evil but I think it's appropriate in this case. All resources to support people in space and beyond has to first be taken from earth. So far we know of no self-sustaining environments beyond earth.