Does anyone else find it funny when atheists deny this?

Deny what? I'm fully aware that most Satanists ARE atheists. But that in no way means that atheists are Satanists or that some Satanists don't worship Satan as a deity. There's more than one kind of Satanist.

Edit: >"Thank you, Inigo!"<

For what? I am seriously not seeing your point here. But good job at only quoting PART of what I said.

Contrary to popular belief, all atheists aren't the same. So just because some bozo says Satanists are atheists doesn't mean all atheists are Satanists.

Yes the Church of Satan are atheists, they believe Satan is the dark side of human nature.

I find it so stupid that it didn't even make me laugh.

Of course Satanists are not atheists, that could only be said by a person who cannot use a dictionary.

And some Christians practice Santaria and Voodoo and have been Killing and persecuting and judging innocent people in the name of the Abrahamic God (Judaism, Christianity, and Islam) since their religion began. Now what?

Then, the person who said that was too willfully stupid to learn what atheism IS.

Atheism is a non belief in any deities figures. Satan IS a deity figure. People who worship Satan ARE theists, NOT atheists.

Fat, drunk and stupid is no way to go through life, son. Dean Wormer, Animal House

Some Satanists are atheists. There are different types of Satanists.

they mean that satanists are atheists not, atheists are satanists. It's like saying the ferrari is expensive, doesn't mean everything expensive is a ferrari. You are beyond stupid, seriously, stop embarrassing yourself, like Kif said

I feel Like Laughing when christians make that claim..Laughing at their Ignorance,,but sad that they are remaining willfully Ignorant of the actual Truth

atheism and satanism have Nothing at all to do with each other!

If they don't pray to Satan, attend occult meetings, etc.... they believe they don't worship him. That's their definition. But scripture doesn't offer us 3 choices, only 2. Either you're in God's camp, or you're in the other. But we were all in the other before saved, so grace abounds even there.