As much as she is an idiot, the clip posted everywhere is so out of context when you listen to the entire argument. The Trump lawyer specifically makes the legal case that allegiance isn't voluntary, but is the product of the rules to which you are subject to. It's a very specific legal definition of allegiance, as well as of domicile.

It's actually a pretty interesting argument, if people would bother to actual listen to the entire thing instead of parroting non-sense they hear in 20 second clips.