While reading an interesting article on the sole survivor of the Heaven’s Gate suicide cult I found the following analogous to the Global Warming zealots.  It’s the same response you might get from the left if you say you believe climate change is naturally occurring.

When he finds out I don?t believe that the Grays ? the big-headed, almond-eyed
aliens ? are abducting humans for genetic sampling to save their species, he looks
surprised, as if such knowledge is axiomatic, and says, ?Well, you?ll get there
eventually.?