I miss being a "believer" in UFOs, but, after escaping JWs and learning critical thinking skills, I found that I used the same apologetics, shoe-horning and mental gymnastics defending my personal belief in UFOs as I did defending the WBTS. I also got totally enthralled with conspiracy/new world order stuff to the point that I'm embarrassed when I look back on those days.
Skeptics, free-thinkers and atheists like myself do not doubt the existence of ET life. In fact, many recent observations almost predict it's a certainty. But when it comes to the cultural phenomenon of UFOs (and cryptozoology), you will observe the same dogma, logical fallacies and poor apologetics among those who insist they're real that you see in fundamental religious people!
If UFOs are extraterrestrial, how did they get here? Inter-dimensional travel? Warp drive? Worm holes? You have to realize that the energy needed to drive a vessel through hundrends or thousands of light years in "real time" would require the total energy output of a star throughout its entire life! Not to mention the effect it would have on the travellers--they cannot return to their home planet without seriously messing with their own relative space-time. Ok, so, they may be "an advanced civilization." Then why would they travel so far in these inter-dimensional warp driving ships only to zap cows, make impressions in crops or kidnap and put all kinds of hell up the butts of rednecks? In this age of technology where billions of people around the globe carry amazing handheld devices with HD capabilities, how come every single photo or video of a supposed UFO/alien ship are in such poor quality and can easily be debunked (if not proven forgeries)? You would think by now that irrefutable, super high-quality pictures and videos of UFOs would be available to the world. That's simply not the case at all. Occam's Razor, people... Occam's Razor!