With the major distinction being that a lot of Europeans have absolutely no intention of ever visiting the United States, a country with a history of sometimes more, sometimes less hostility and aggressive intelligence agencies.
If you want to visit a hellhole, go through the hassle. But don't hand out all of our data just because you want to do joyrides.
Can't see where "the major distinction" lies. It's also true that a lot of US citizens have absolutely no intention of ever visiting Europe -- as to hostilities, well the last two World Wars didn't exactly start in the US.