Sheesh.
This is the exact same deep psychological need for someone to be "in control" of events that drives belief in God, in conspiracy theories, in the trilateral commission etc...
Here's how to tell when an idea is full of BS- evidence.
In a world where nearly every other human being has both a still and video camera, ON HIS PERSON.... any event that happens with the purported frequency of UFO's OUGHT to have provided copious amounts of clear, in focus, and sharp photographic evidence that makes it unambiguously clear that they are non=terrestrial spacecraft.
But there isn't, is there? All we get are fuzzy, indistinct images that are totally inconclusive. Or we get obvious hoaxes. ( alien autopsy anyone? )
The peculiar pattern of "evidence" in UFO beliefs systems is perfectly explainable by the fact that there ARE NO ALIENS SPACESHIPS.
Because, IF there are no alien spaceships, THEN any clear and properly focused photographs of UFO phenomena will clearly show a readily explainable origin.... and ergo be discarded as not being evidence of UFOs....
That will leave ONLY unclear, out of focus,photographs that are too ambiguous to clearly identify an ordinary origin, and leave open the question of whether it could be a real alien spacecraft.
See? The Pattern of ALL evidence being inconclusive is the RESULT of all conclusive evidence being tossed out because it doesn't back the belief system.
Add to that this simple reasoning.
Traveling to another star is not cheap. The energy involved in accelerating to any speed that would make the trip feasible in terms of time exceeds the energy consumed by the entirety of human civilizations in the past several hundred years.
And, no matter what futuristic culture you want to fantasize... energy is still gonna be a resource that costs something.
So... what possible intelligent purpose could drive a culture to make such a trip?
Either they desperately need our resources... in which case it would be a simple invasion using their advanced technology...
Or... they are curious to meet some other intelligent race.
The absolutely most insupportable notion is that they would travel across trillions of miles over decades of time just to mutilate some cows, probe some rural crackers, and do donuts in our wheat fields.
UFOs and Aliens are as stupid an idea as are angels...
I am CERTAIN there are intelligent races out there... But if they ever bother to come this far... they will absolutely say hello, or stick em up.