Atheism is the punk rock of religion

[Reforged]

If you seriously want to use this kind of reasoning then fine. I'm game.
By that same definition Christians are atheists because they don't believe in Allah and Muslims are atheists because they don't believe in Yahweh. The same reasoning can be applied to every single religion in the world.
Well I guess we'd better call everyone an atheist now.
Anyone else get the feeling this is going to get confusing?

If you believe in ghosts but not gods- still an atheist

If you believe in the power of Voodoo but not the Loas or Orishas - still an atheist

An atheist might believe in horoscopes, they might be honing their telekinetic abilities as a hobby. Some may have arrived at atheism from some evidence they found compelling, others because they never found any evidence they found compelling. Some couldn't care less about evidence either way, they simply don't believe. It's a big tent.

Christians are not atheists because they believe in god, they are not Muslims because they do not have faith in Islam. Similarly Muslims are not atheists because they believe in god, they are not Christians because they do not have faith in Christ. So no, they are not atheists by that definition - or any definition, though we can call them that if we want (because we can call anyone anything we like).

Actually I'm not sure there is a word for people who believe in ghosts and psychic stuff. The closest word I found was "spiritualist" but its not ideal.
spir·i·tu·al·ism (spr-ch--lzm)
n.
1.
a. The belief that the dead communicate with the living, as through a medium.
b. The practices or doctrines of those holding such a belief.
2. A philosophy, doctrine, or religion emphasizing the spiritual aspect of being.
spiri·tu·al·ist n.
spiri·tu·al·istic adj

My point is that you are classed with the beliefs you do hold before the beliefs you don't. Thats why Christians are called Christians rather than Atheists. The beliefs they do hold are taken into account before the beliefs they don't. This is applicable to any belief system. I hold no beliefs therefore I am defined by my lack of belief, I am labelled an Atheist.