Your post is a great example of a point I have repeatedly attempted to make: that the Watchtower questions have a deeper and more lasting effect on people's minds than the Watchtower answers.
Why would there be something like a "true God"? If there really is something/someone like the "God" of monotheism, why do you think it would have to be identified with one particular god of the ancient polytheistic world (like Yahweh), or one particular version of "God" among modern religions and sects (like "Jehovah")? Why would he own a "people" in particular?
By all means question your questions.