Re what you said about a 'not very bright God'.. well, personally I have a strong belief in God, and The Rapture scenario does not make sense to me in any respect
Robert Heinlein wrote of men being unable to think of Gods that were superior to them, hence most were stupid, spoiled and petulant.
Evangelical Christianity is unique amongst the major religions. All the others, even "mainstream" Christianity have some element of trying to understand God, his works etc. ECs don't do "understanding". Christianity is variable like this, most of the large sects have large amounts of obscurantism, Catholics for instance spent centuries trying to stop the unwashed plebs getting a Bible in a language they could actually read. But at least some Christians were supposed to be thinking. My last employer was owned by a family of ECs, and everyone else in the firm but me got pamphlets, and "invitations". My favourite is the book that said "you don't want to worry about all those long words in the Bible, they're just there to scare you".
The ECs actually thought I was some sort of hard line Christian, and thus kept well away from the topic. They could not have been more wrong :)
This is why we see ECs fighting against science, as one Christian American Vice President put it "facts are a kind of pollution", because they distract people from the truth.
That is the core difference between religion and science. Scientists know that they don't know and thus are trying to find the truth which requires you to change your mind. People who get caught up in organised religions are required to believe that they have found the truth, and thus resist any attempt to change their minds.
I do see people who use Christianity et al as a source of ideas to try and answer various questions. Their logic may be summed up as "I find that I believe x,y,x, so that makes me a Christian".
This is very much smarter than people who say "I am a Christian, therefore I believe x,y,z"
Actually the second "logic" is I believe a root cause of much race/religous based strife.