Perhaps those who speak in absolutes, do so not because they know the truth but because they lack the cognition one needs when facing absolute uncertainty.
Your logic is the equivalent of an ever-growing number of people in authority telling you—over and over, for nearly a century—“Bro, look… your significant other? She’s cheating on you,” only for you to keep brushing it off with a casual, “Man, that’s some old bullshit.” Never once feeling the need to check it out. Oh I dunno…that sounds more looney to me.
Btw, I never said I believed in aliens. I’m open minded to it of course. And the evidence seems to point in that direction…but we need PROOF. And we can’t get PROOF if we’re don’t allow EVIDENCE to prompt an investigation to acquire that PROOF…if it exists.