I look forward to a world where time zones are the most meaningful separators of human beings. And they can be quite significant when someone is a world (or half a world) away.
We all can't occupy the same space for scientific reasons, but national boundaries, ethnicity, religion, and (increasingly)language are things that don't have to drive a wedge between us.
This doesn't mean you have to stop being proud of who you are or where your ancestors came from.
Space and time must separate us. Everything else is a choice.