Also, the doctrinal view: "God wanted to show that man could not rule himself" is an earmark of Watchtower theology.
Scholars (real ones) teach that accounts like the Adam and Eve story and this one teach not that "God" wanted to show that man is incapable of ruiling himself (we can). What this and the Adam and Eve story tell us is that humans tend to not want God to rule them. That is very different.
This is not, according to non-Watchtower sources, a God that tries to show that we cannot rule ourselves. On the contrary, God hopes for us to do so, as most Judeo-Christian religions teach (i.e., democracy is considered compatible and even a paramount illustration of values that agree with Christianity).
The God of the Scriptures teaches that when offered, humans tend to reject God or throw any influence God might exercise out of the picture. And that is true. The other view, that is GB Hogwash and has nothing to do with genuine Biblical theology.
Perhaps we need some "Wash That Watchtower Out of My Head" Shampoo. We are arguing in circles, claiming the Bible is wrong on the basis of a trademark JW doctrine. That reasoning would only work if the JWs wrote the Bible to begin with (if we don't count the NWT, that is).