The devil isn't interested in you.
He doesn't want your worship or devotion, he doesn't care if you love him or not. He never tests you or expects you to kill your only child to prove your love and devotion.
The devil never brought the flood to the world and attempted to kill all humanity.
He never destroyed two thriving cities, he didn't order his servants to smear lambs blood above the doors of his followers so they wouldn't have their children killed in his rage for blood.
He never took credit for the existance of humanity. Considering even the bible says there was already someone here.
What did god give humanity? death, pain, suffering, and with held knowledge of good and evil from us, so we would remain dupes to our own existance and potential. Then kicked us out of eden for fear we would become as gods and live forever.
The devil's followers gave many things to humanity. The first of these gifts was makeup, then metal working, astrology, mathematics and science. What did the angels give us? Nothing, yet we call on their kind every day and revile those that gave us everything.
That very brain that you used to think up this question, was developed using the gifts of education given to you by the devils followers.
How did god educate you? with rules and supression, with a monotheistic view point in a paternalistic indoctrination.

The devil never did any of these things, but god did... The devil isn't your enemy.