PS. There is no reason for me to bother reading their books because there is nothing down this line of reasoning that would induce me to change my view in this regard. At most, they would reinforce a view that I already tend toward: that civilizations are rare. I have no problem with even the notion that we are one of a handful of sentient beings in the universe, although I would guess there are tens of billions (just one on average per spiral galaxy very similar to ours would give that result).
Suit yourself. But I warn you, now you've got me praying for you! Your screen-name implies rejection of authority, and God is the ultimate authority, so I think I'll start there.