We're not talking about tourists here. Immigrant workers routinely become married homeowners and parents with extensive personal and professional networks in the US and few links to their countries of origin. My long-tenured H1B coworkers would do no better upon moving to India or China than I would, save for language skills. But that's moot anyway. If the US decides to kick them out and they have to give up their current lives anyway, we'll move them to a third country with deterministic approval for skilled workers, like The Netherlands.

Americans can flee to Canada or any number of other countries which open their doors to us, just as the draft-dodgers did when the "social fabric of the nation-state broke down."

I agree it's weird to blow up citizenship as a concept. We should be talking about making citizenship actually possible for the people who are committed to it, not locked away behind quotas and waiting lists.