[Melas]

Ah, and when you move, changing States, you don't have to re-register your voting location? Re-license your vehicles? Just because our system's streamlined it doesn't mean it doesn't exist. (Just because you don't have to do it right away doesn't mean you don't have to do it.)

It's still not even remotely comparable. If I emigrate from the USA and become a citizen of Singapore, I lose my U.S. citizenship. It's gone, and I'm unlikely to ever get it back. Hell, looking at recent headlines, the USA may not ever even allow me to re-enter the country for a visit. I can go back to Colorado and become a citizen any time I wish. I can become a brand new citizen of Alabama, or California on a whim.

State citizenship, unlike national citizenship carries absolutely no requirements of allegiance. Nothing is surrendered moving from state to state, and nothing special is granted. The same cannot be said when expatriating.

[Sherman Logan]

If I emigrate from the USA and become a citizen of Singapore, I lose my U.S. citizenship.

Not unless you also choose to renounce your US citizenship.