Satanic verses

[R00tKiT]

-and contemporary western atheism is more recent than islam, but you don't appear to think that fact is instructive in that regard.

Well atheism isn't a religion nor does it have scripture, you're not really comparing like with like.

 borrowing his religion to unify an arabic audience....but I digress.

Muslims believe the christian religion/judaism were originally from God, so the Qur'an having many things in common with these religions isn't surprising.