Dear Mr. Friedman
You assert that "There is Overwhelming evidence that the earth is being visited by intelligent controlled extraterrestrial space crafts. There is however no way for a normal person to prove or disprove this claim, either due to classification or lack of said evidence.
However you do not posses any evidence of Alien visitation on earth, and if this is so, your argumentation from a logical perspective have no value. Where are those overwhelming evidences?
After 40 years of research, I am convinced that the UFO phenomenon is with us from the beginning of historical, and perhaps pre-historical times, but the extraterrestrial origin of this phenomenon is just an hypothesis, and not the most convincing.
We don’t know what UFOs are. Of course, this recognition doesn’t sell books.