satanism only makes sense in the framework of christianity.
real atheists rejects satanists as reactionary christians - and satanism as irrational.
something should also be said about the parallels between secular humanism and natural law theory, which is a christian idea, in origin. i'm not an advocate of natural law theory, exactly; it's not scientific inquiry, and science really needs to take precedence over logic. but, you can't really understand secular humanism without having read a little aquinas.