maybe yes, to some very few cases. Probably no to most cases. There is also a decent albeit small probability of no to all cases, although obviously, you wont ever be able to analize them all, so its not verifiable.
however, I see no reason why all governments on Earth deny UFOs as extraterrestrial craft, as well as the scientific community.
It seems that UFOs on purpose like to be on the limits of being seen and at the same time not be really identifiable. You never get good footage and all best footage (that you can really identify a spacecraft, not only lights or other weird phenomena) is mostly proved to be fake.
their purpose also cant be more misteryous, just so we say "they are more intelligent, or too different for us to understand them". Quite convenient imho.
maybe they are just waiting for Woodward, Paul March and GiThruster to effectively build useful ME devices for destroying us before we belicous humans can get to bold and become dangerous in a galactic scale. Probably they get near enough to connect to our wi-fi networks and post at NextBigFuture as GoatGuy, to discredit ME.
Something need not be proven true to consider and predict the ramifications of it should it turn out to be true.
I totally agree with that. No wonder we posted about ME being a possible answer for the dark energy mistery. Its a fun speculation, but not of much use yet.
hopefully, it WILL be a matter of speculation in the future because hopefully ME will be proved to the point of scientific consensus.
although in the small chance imho that the UFO´s are all spacecraft as GIThruster believes, we can´t really predict their reaction to humanity suddenly being able to travel among the stars.
ps: even if you dont like me, maybe you can be considerate enough to answer whats is your view, knowing that you are religious, regarding meeting extraterrestrials. I mean, regarding the Genesis book, Jesus (human) as son of god, god himself...