You're just changing the meaning of words now, that won't fly.
The "great" in "maximal greatness" has never meant maximal goodness, or implied an inability to commit evil acts. You say God is the totality of all that exists. Well, evil exists, so God has evil within his nature by necessity.
If that is the case, and greatness is merely goodness, a maximally great God would not encompass anything evil, and therefore a maximally great being cannot be the totality of everything that exists, that includes evil and unjustice.
Do you see that? By changing the meaning of the word you have made your case even weaker.










