He is an imbecile.
Atheism is just the position of not believing in a deity, it says nothing about why you don't believe.
Maybe he doesn't know the definition and doesn't realize he's agnostic.
He isn't thinking much because he obviously isn't able to think critically.
So you don't really know what your cousin looks like? And I won't even say what state I live in on here. All I'll say is that I live in the south.