This is from a protestant (non-Catholic, non-orthodox I believe anyway), full quote:
"The devil is not fighting religion. He's too smart for that. He is producing a counterfeit Christianity, so much like the real one that good Christians are afraid to speak out against it." -Vance Havner, who died in 1986
(Personal analysis of quote in comments)
Satan is very proud, he would not bow down to man as God's children because of this pride. He is destroying humanity to spite God but he won't win and he knows it.
This must stick in his craw unbelievably badly, but he just doubles down on his efforts to kill everyone, he has no other choice.
The Archangel Michael has entered the chatroom. Honk Honk!