I would say that not everyone has to be depressed and thus project the lack of meaning on the universe. It can, indeed, work the other way round too. That is, one becomes depressed when one is unable to find meaning of one's life, especially if one craves one. Been there, done that. Unlike you and the existentialists, I simply accepted that there's no objective meaning at all as a fact and moved on. After all, why would I need a meaning to be? To feel validated or of importance? To see myself as of value or usefulness? Or to prove myself? To whom exactly? Screw that. I would not trade this accepted lack of meaning for anything as it's pretty liberating and as far from despair as it gets. Your mileage obviously varies ;)