How to easily defeat any argument for God

[GrandizerII]

I do not believe in the platonic Good. Good is a label, nothing more. There is no such thing as the Good beyond the abstract sense. There are acts that we can observe of which we say "good" or "bad". That is it. Abstract things come from us, those who have the capacity to bring forth abstract thoughts.

The perception.

Both of us, and perhaps anyone whose not being dishonest, is aware that their recognition of right and wrong, is not a recognition of their internal biological state, as an articulation of their likes and dislikes or personal feeling etc..Unlike  when we say a particular song is good, or a particular dish is good, etc.. where good described a quality of their feelings. 

We perceive good as external to us, not as an internal state.

I don't need to subscribe to your particular moral theory, or even be able to define good, to recognize this. Just like I don't need a definition of the sun, or even know much of anything about the sun's nature, to recognize that it exists outside of myself. My definition, nor my moral theory is the source of it's existence.

From this, the question is what is the nature of this thing, that both you and I acknowledge seeing. 

Are you trying now to suggest good is just an abstract thought, that resides solely in our mind? That seems to be a contradiction of your rejection of good as a description of our internal states.

External things can be seen as good or bad. But the assignment of good and bad comes from us, not from "out there"

External good makes no sense to me without referring to something concretely observed in nature.