Unfortunately you choose to deny the overwhelming dicumented evidence in support of what the word UFO means to convey, and choose self-servingly to portray it using not the actual definition(s) or even the common understanding, but the mere word origin in the form of the individual words that makeup the acronym. So long as you continue misrepresenting the meaning of the word in this way, we have nothing further to discuss on the word origin, meaning or usage.
UFOs are simply things which appear to be flying and seem to be objects, but which have not been identified as some particular known thing. There's nothing self-serving about it. Like it or not, that's just the way the English language works. If you're trying to communicate the concept of alien craft, it would be most appropriate if you would use a term like maybe "alien craft", for example. If it's something identified, it's not a UFO. If you're trying to wish aliens into existence by requiring other people to accept your dishonestly redefined terms, you'll fail going forward same as you've failed in the past. Totally. Completely. 100%.
As for you saying that UFOs ( alien craft ) have never been demonstrated to exist. all you can say with any certainty is that they have never been demonstrated to you. They have however been demonstrated to me and many other people. I freely admit that I cannot replicate my observation and therefore cannot provide scientific proof.
With that acknowledgement that you aren't able to support your claim with objective evidence, maybe your job here is done.
Therefore you may reasonably choose to dismiss that evidence and/or reserve judgement, ( reject the null hypothesis ), but going beyond that by claiming that because alien craft have never been proven to exist, it therefore proves they don't exist, is an argument from ignorance. Therefore you cannot make your claim with any certainty without revealing your bias.
The persistent dishonest tactic of deflecting the burden of proof is noted. I make no claims here other than this: The null hypothesis,
"all UFOs are of mundane origin," has not been falsified. The null hypothesis is an extension of your claim that some UFOs are actually not UFOs at all, but identified or identifiable as alien or extraterrestrial craft. I'll repeat that because that notion of the null hypothesis, how it is derived and how it applies, seems to escape your understanding. The null hypothesis,
"all UFOs are of mundane origin," is a component of your claim. It is created when you create your claim. It is derived with the specific purpose of allowing you to prove your claim. Without it your claim is just words on a page, meaningless drivel. When the null hypothesis is falsified, it demonstrates your claim to be true.
Lastly, your analogy between UFOs and gods is false, and comparing the phenomena to fairy tales is equally false logic.
There is exactly equal amounts of objective evidence to support the claim that gods exist as there is to support the claim that some of the unidentified things that are perceived to be flying objects are actually alien craft.
Simply because unicorns or Santa Clause are fairy tales is not proof that UFOs are also fairy tales, and to make that assertion with such certainty once again only reveals your prejudice and bias.
The dishonest distortion of my position and generally twisting logic into a blatant straw man is noted. And as an argument, as always, it fails.
Consequently, it seems we have nothing further to discuss.
Can we take this as an acknowledgement that you have failed here and that you are unable to support your claim that some unidentified flying objects are alien craft?
Perhaps I'll run across some video or case study that you can help debunk and I'll look forward to your responses at that time.
Debunk a "ufologist's" arguments from ignorance, straw men, special pleading, and dishonest attempts to abandon his/her burden of proof? No debunking necessary. If you can't support your claim with objective evidence, you can't support it. If you do have objective evidence to support your claim, I would be as interested to see it as anyone. But try as you might, redefining reality to accommodate your fantasy is a strategy which is bound to fail.