Perhaps they're content with not knowing much about it. And I can see the reason for that. Isn't it better to accept that you can't know what the truth is, than to invent a false one? Regarding the original title of this thread, George Bush recently mentioned lots of different religions and then added: "...and good people of no faith at all." That shows that he considers the nonreligious to be bad by default, since it's necessary to add "good" in front of his reference to them, but such is unnecessary for his list of religions.