Now, let me get this straight. You want me to craft an argument that is positive and reasonable to a theists viewpoint? Seriously? In what sense do you mean positive? In what sense are you meaning reasonable? You have to understand that you have phrased this in a very peculiar way
for English readers.
I'll give it a stab though.
I am positive that no god(s) exist outside the minds of their believers. I am 100% certain on this. My justification for my vehement assertion is based on my own wide ranging experience that has repeatedly withstood the test of time over a period of several decades. I'm not sure how much more reasonable one could possibly get than that.
Further to this, over the decades I have read countless accounts of theists rapturously describing their experience with their perception of god and have rarely been moved and usually come away from those accounts wondering what mental issues the person in question may be afflicted with.
Likewise, I have interacted with theists for thousands of hours and have yet to find much of their thinking to be particularly noteworthy or meaningful. Many are fixated on so-called 'revelation' as if revelation itself confers instantaneous authority. Sadly, for theists, it does not, though they most often pretend it does.
In closing, I offer the sage words from a Canadian artist called Neil Young. It is taken from his song, "Old Man" and sums up my perception of so-called 'revelation' perfectly.
"It doesn't mean that much to me, to mean that much to you."