One could certainly note that America also spends by far the most on things like stealth bombers and fighters, or that the most common types of sightings oh-so-coincidentally end up matching the profiles of those stealth planes once they become common knowledge.
I don't remember where I read it (this was years ago) but The US had purposely experimented during the cold war with making people think they've seen ufo's to gauge their reactions and to feed the frenzy to make russia think they have more tech than they actually do.
I've read they do this with our own military too so they can gauge the reaction of military personnel elsewhere in the world without exposing them to our secret technology. I'm like 99% sure that's what all the recent UFO video stuff was that had been circling the Internet.