It seems to me that if extraterrestrials had the means, and power and technology to get here, they rightly wouldn't give a damn what we thought we saw.

Unless one lands in my back yard and Grak steps out, I over the years have just become a bemused non-believer. There's nothing crazy about not believing what cannot be proven irrefutably. There is a madness however in conversely believing in what cannot again be proven.