And u have found a way to prove the lack of Muslims' god???
Oh, that is very easy to do.
The God of the Qur'an is described in such terms that he must be either non-existent or the supreme reference for all virtues.
Yet it is also inimical to homosexuality, which does not make sense.
It also disapproves of atheism, in violent terms no less. That means that he is either cruel or insane, which would contradict his quality of being supremely virtuous.
He also approves of Qur'anic ethics, which are based on tribal mentality. Which is to say, they need to define themselves in relation to some form of external enemy. As ethics go, those became obsolete a couple of millennia ago at least.
And then there is the self-imposed limitation of the presumed eternal validity of the revelation of the Qur'an. We are expected to accept that God is both supremely wise and satisfied with the prescriptions of the Qur'an for all of human time until extinction, despite it clearly being deeply flawed (in the ethical sense at the very least) for any given time in the last 1000 years or so, as well as for any conceivable future before a cataclysmic event.
So there you have it. The god of the Qur'an does not exist except in the faith of Muslims. We know that because he can't exist as the being of supreme power and virtue that he is described as being yet insist on having so many and so obvious flaws.