As the one who originally posted the concept from which DougR has created the idea of "world citizenship", I think it would be appropriate for me to point out that those words originated with DougR, and not with me.
I said that I would like to see a television advertisement that showed people from countries all over the world saying, "I am a human being". Any references about "world citizenship", and whatever bureaucracy that would involve, came from our esteemed DougR.
I did say this... "I don't think it would be practical for us to have world citizenship yet, but I do think we can start changing our focus from identifying with just our own country, to also focusing on our common humanity." And I agree with me.