Yes... I looked at 'Replies', which showed 'None' so I did not know that your question had been responded to. OTOH, my explanation is more explanatory, plus, while all the craft in question are not 'air craft', they are 'aerial phenomenon'... perhaps a subtlety.
Not sure where you got that. UFO, or unidentified flying object, means unidentified flying object. Calling something extra-terrestrial simply because it's unidentified doesn't work. To me there is zero correlation.
In fact, I’m not sure what your position or argument is here...lol