Being American is about owning your own place on a ****load of land (compared to most countries) and barbequing shirtless while drinking beer and talking about pussy. Independence, got dammit.
None of that happens in any other country. Seriously, think about that. We got all that stuff.
Nobody who has every emigrated from another ****hole to here has ever gone back or left the USA#1. We're 448,339,182 for 448,339,182 in retaining these awesome people who wanted to find a better place to raise a family.