Nothing more to say.
Absence of proof is not proof of absence.
And the ever-popular (from Sherlock Holmes):
When you have eliminated the impossible, whatever remains, however improbable, must be the truth.They aren't ours, they aren't China's, and they aren't Russia's.
They might be Albanian though...or perhaps French. And those clever Swiss.;-)
Furthermore, I suspect the only group of people who have information relevant to the UAP's are the scientists and engineers actually working under black ops in clandestine facilities across this country.....