If in the course of writing a novel, I do research into Christianity and include some of its arcana in my book, does that make me a Christian or one who is tied in to the true practice of Christianity? Does this also work for Jewishness? the Masons? the Illuminati? the Klan? the Knights of the Round Table?
It doesn't quite walk on all fours. We're talking about a movie, not a novel. Parallels would be more like hinting that certain drugs can be processed in your basement or zip guns can be assembled with junk from the hardware store or pipe bombs are easily made. But kids aren't likely to see that stuff because we have (weak) systems in place to keep them from that knowledge.
Don't forget that there is a dark side and some of those involved carried guns into a certain Colorado school. The desire for occult power and knowledge is a base desire. Ministering to base desires is called pandering.
The arguments used to support Potter, (It's just entertainment) could be applied to any number of perversities.