To say "I don't know if a deity exists" is perfectly logical. To claim that one is "anti-theist" is to deny the truth claim made by a theist. In doing so, the atheist makes a truth claim that the theist is wrong, but that is not logically possible to know.
Wrong.
An atheist simply does not believe in the gods proposed thus far. For about the millionth time: atheism is not a belief system. The fact that you need it to be one in order for your argument to hold together indicates that your argument is BS.
BTW, that same illogical nature applies to the theist..... But I doubt any of them could care less....
Except that it doesn't since theism is a belief system and atheism isn't.
See, the play to cast atheism as just another form of faith is going nowhere because it isn't a faith. You can spit vitriol from here to eternity but atheism will never be a belief system. It's a rejection of blind faith.