Nevermind that this is partially copypasted, but you just seem to always dodge answering this simple question.

Why would someone who believes in a god which is, in all characteristics, exactly like the christian god, with a book exactly like the bible, just that it also says that:

• He is not the christian god.
• The christian god does not exist.

be wrong, while you would be right?

Important hints, since you didn't get it the last 20 or so times:

• There are no sphaghetti monsters, flying or not, in here.
• It does not matter if someone actually believes in this. It is possible for someone to believe in this, that is enough.
• Yes, it is really enough. Even if you have not heard, ever, that such a religion exists. You are not all-knowing.
• That someone could easily make this argument against you, since his worldview would allow him to use everything you use.

So, do not, yet again, dodge this question and blabber about how you have never heard about such a world view (It doesn't matter, you are not all-knowing), about how I cannot account for the logic I use (Someone who believed in this could make this exact argument against you), about spaghetti monsters of any sort (No monsters here), about how no one actually believes in this (How would you know?), or about how this is christian religion anyways (It is not, this religions god denies the existance of the christian god, and since when does god lie?).

Just answer the question. Why would this person be wrong, while you would be right?