In my personal opinion, unidentified aerial phenomena (UAP) are obviously not extraterrestrial but are rather caused by a more advanced terrestrial species than that of Homo sapiens. Why are Homo sapiens blind to the fact that they are not the top species on earth? One might ask, if there is a more advanced species on earth why don't they initiate any meaningful direct contact with us to let us know who they are? I can only answer that question with an illustration that refers to ants because even though they out number humans on earth 2 million to 1 we do in fact coexist with them without giving them much thought unless they invade our kitchens.
There are three men walking down the sidewalk. Suddenly they see a large anthill along the side of the sidewalk. One of the men stops and gets down on his knees to take a closer look at the ants. He says to the other two men, “Look at these intelligent little creatures. I think we should share some of our advanced technology with them.” The other two men would quickly lift him up to his feet saying, “Bob get up! People will think you are crazy. Besides that, you are getting your pants dirty.” Same story, but this time with three teenaged boys walking down the sidewalk. They see the ants. One of the boys says, “Look at those stupid ants!” He starts messing with the anthill (crop circles) and takes out a magnifying glass and focuses the sunlight burning some of the ants (spontaneous combustion). Likewise, I have heard some people ask, “Why would aliens travel thousands of light years to planet earth only to mutilate some cattle on a farm?" The answer is that they would not do that.
However on the other hand, I do think that there was a very serious attempted direct extraterrestrial contact that was misunderstood: “And He said unto them, Ye are from beneath; I am from above: ye are of this world; I am not of this world” (John 8:29).