As for the last part... I am stumped... I truly am, and I am not going to pretend I have an answer for it...
Well there is no proof the differences are correct.
And until something solid can shift the probability of the accuracy of any god, i am inclined to not follow or trust anything any religion says.
but none of the participants of this religion seem capable of offering anything solid. and i guess thats the point. you have to go on "faith" cuz there is nothing completely solid about your religion...