Very true, the only big diffrence is that we (or at least I) still believe in Satan and God as a force.
The term satanist is just used because it was supposed to be the oppossition of christianity and therefor they picked the opposite of god (Satan that is) and now we're stuck with that name. alot of ppl judge satanism the wrong way. they don't know what it's about
But is that 'force' a literal one, or a just an abstract viewpoint? Obviously nothing is as black and white as people think it is. And yes, I agree why the term Satanist was used, its more effective from that standpoint and the fact that it creates such an uproar is actually a benefit to Satanism. The goal of many religions it seems is to convert another where as in Atheism or Satanism its more about opening ones mind and seeing the world for what it really is. So the negative publicity isnt necessarily a bad thing because as long as Satanism or Atheism becomes more open to the public people will question their beliefs since the idea will be out there. However Christians for example view Satanism in relation to how its viewed in their religion.