The religious rejected Enoch because the book is opposed to the existence of Religion.

It is quite clearly stated in that book that men were not created to confirm their faith in God with ink and pen.

Enoch rejects religion and the demons that appear in his book are Priests; who desired their own Kingdoms, abandoned their King and set-up rebel Thrones.

and now those Priests are going to have their teeth smashed in for what they've done.