My response is -- who cares?
It is a pretty safe bet none of the Potter critics have read even a single word of the novels.
Those who have, however, have visited a world where sorcerers exist, for sure, but also more traditional themes, such as good versus evil, power over powerlessness, friendship, loyalty, responsibility and, above all, love.
Anyone who reads these books and doesn't see these things are more than a little myopic.
I don't know. I was discussing the argument in the Bible for a flat earth (Jesus is lead to a mountaintop from which he can see all the kingdoms of the earth), and was told that this was a metaphor. There have been times in history when the church took this literally and argued the earth is flat.