Your belief that consciousness is not predicated on biologic life (although a common assertion between these two arguments) is a fallacy within the naturalist world view. If the universe is the only existence there is (ie. no supernatural interference within the world) and consciousness is simply a byproduct of various chemical reactions within the brain (medically verified) then it would logically follow that a person’s consciousness would cease to exist once brain metabolism has halted in a naturalistic universe.
In essence, a continuation of consciousness after death in a naturalistic universe must be impossible.
No that's my point. It is predicated on biological life. Not any religion. The brain works using bioeletrical energy. Synapse firing and so forth. The question is to be what happens to that energy when the solid brain stops functioning.
If you call that energy a soul or a ghost depends on faith so to speak.