I doubt if aliens would choose the US to reveal themselves to. Your gun culture and dysfunctional government for examples. Sorry if that's unwelcome news. The aliens would most likely try the most enlightened government they could find. Netherlands maybe? Or Sweden.
Doubtful. Europeans have a
ghastly history of continual warfare that far outpaces any civilization one might encounter in the western hemisphere. Plus I don't see aliens parsing Earth history to be all that discriminating towards one European nation than another. That they'd likely consider
all human nations with the same sense of trepidation- for good reason.
That over the span of time
it's our species which remains warlike- and not any one nation. I just don't see such an advanced civilization parsing one group of paranoid, warlike humans from another. Assuming of course, aliens have the ability and choose to "underwrite" our species beyond merely its present, with the ability to analyze its past as well.
Perhaps you misunderstood one of my comments. While NASA might be helpful in better exposing an alien existence, forget any notion of them coordinating "first contact". I don't see aliens specifically cooperating with NASA or any other space agency- whether international or not. Again for the reasons already stated.
Thus it would seem far more logical for an advanced and hopefully peaceful civilization to covertly observe us from a chosen distance than make any form of direct and formal contact. More so perhaps if they have an agenda with our species or planet that we might fundamentally object to.
However all that said, we can only truly assess beings we know nothing about from our own flawed frame of reference. Ironically indicative of the film "Arrival", aliens making first contact would be just that. -Aliens. Beings whose very existence could be so contrary to our understanding of life, time and space that we have a very difficult experience in trying to communicate with them with the best of our intentions, only to fall back on the worst of who and what we are
as a species.
Interesting that Amy Adam's character in "Arrival" ultimately told a secret to an adversary that ultimately changed the precarious circumstances of a first contact. Resulting in being able to convince the rest of the world that the aliens meant no harm in the first place.