You're on the opposite side of 6,000 years of religious theology.
Not sure if you're Christian or not, but the word for such a position is "heresy."
I'm not trying to put you down or judge you, just offering an objective observation in response to your rather brusque proclaimation.
On that, friend, you are wrong. Unless you refer to the Zoroastrians and their mash-up of a theology, but I do not think they are 6,000 years old — maybe 4000. The ‘Satan’ as an independent godlike being which you seem to be demanding be recognized is a more recent invention.
That Satan is a the world’s greatest and longest excuse for misbehavior. But that’s all it is — an excuse.