"Burn all religious books and forget about Gods. hehe, right? :)"

 

and then what?

 

humans are biologically prone to believe in agents that aren;t there.

someone will just make up some nebulas hippy'esque god to whorship.

 

of course we would be rid off most of the batshit insane other gods.

 

you want to really exterminate us? make prayer mandatory, and start a witch hunt on every person who doesn't attent mosque, temple or church.