The actions of the character “God” in Genesis 2/3 are not those of someone who is omnipotent omnibenevolent. I do not doubt that Christians are able to overlook this issue.
Yes. That has been the point all along: That the Christian interpretation is not supported by the text alone.
Of course, that is certainly the case. “Adam” may well have been based on some real person. It would be similar to how most historians believe that Gilgamesh really existed, but don’t believe he really had a best friend who was a giant furry monster.
The Genesis story is almost entirely made up of the equivalent of giant furry monsters and the like…