> The notion of global citizen is misguided in the first place, because there is no global entity to be a citizen of, at any socio economic level that matters.

Well duh. I'm pretty sure people who use this phrase are well aware that they're not literally becoming citizens of some world entity.

> Sure you can say that you're a creature of Mother Earth, we're all brothers and sisters united by a common bond, all that; at the end of the day you're still paying taxes to a very specific, non "global citizen" government, and depending on that government for basic services like healthcare or educating your kids.

Yes, this is what the term "global citizen" means.

Theresa May, is that you?