Simon, you keep applying logic and reason to the realm of religion. That just doesn't work.
Any organization based on fantasy and mythology is not 'true' in the sense that it is based on factual evidence.
I think the ancients who worshipped real things such as the Sun and the Earth as being life givers and divine were more sane than the big 3 we have today, worshipping Gods that kill people for not believing whatever warped interpretation of ancient scribes' superstitious writings less ancient people chose as some sort of 'bible'.