No, it is Anti-Abrahamic, not un-Abrahamic. Very different. Is the Anti-Christ not a part of the Abrahamic faith? A religion can't simply deny the negative side of itself because its not pleasant.
I'm following your logic here Trey, Technically you and Draka are correct that God and the Devil are Abrahamic.
The thing is, I'm Abrahamic because I believe in God and the Devil. It is part of my religion.
Many Satanists do not believe in God and the Devil. Correct me if I am wrong here, but many Satanists are Atheists at heart and do not believe in God.
A Panthesist may worship one Deity above another, but they still believe the other Deities exist as well.
This would be a dis qualifier for many Satanists to actually be Abrahamic IMHO.
Thats why I say for a Satanist to be Abrahamic, they must identify themselves as such.
I'm still waiting for that one example which would satisfy this requirement.