I lean towards aliens being still one of the very best reasons/causes for the most interesting UFO sightings/experiences in history. UFO reports, especially those witnessed by many people at once, I think can be considered very good evidence depending upon what was witnessed.
There are a few exceptions, I admit, but the overwhelming majority of UFO sightings have been proven to be hoaxes, conclusively disproved as alien sightings, have no reliable witnesses, or at the very least are quite reasonably explained in far more probable ways. Of the handful that remain, which is more likely - aliens, or some other explanation, such as a secret government project, that just hasn't been found yet, as many other sightings which used to appear just as unexplainable turned out to be?
From what I've read, watched, and listened to about this subject is that the majority of reported sighting have insufficient evidence to know if or what the people witnessed. The U.S. government made a formal investigation on the matter and the chief investigator said that the real purpose of the investigation was to discount almost all UFO witnesses no matter what they saw. And that same investigator came to the conclusion that UFOs were probably alien.
Most of the UFO sightings are called "crafts", "intelligently controlled", purposeful in their actions, strangely small, incredibly massive--from football fields in size and up to a mile in size, moving through the sky quietly, silently, self-lit, and well-known amazing speeds, ability to stop in mid-air, have a variety of unusual angles, and an ability to disappear from sight instantly.
From all the things I've learned about this phenomenon, I more than doubt your point of view, TheronG12:)
I always knew Rocket had brains.