https://www.reddit.com/r/CuratedTumblr/comments/1cbkstf/may_the_terf_wizards_die_unmourned/
I argued here that the whole HP shit was worth it because it was going to imprint in the consciousness and brew beneath the surface. Libs see it as tainted and that shit isn't going away. There are real moral concerns bothering them deep down.
The long term effect is good.
Meanwhile the art: the main character owns a slave who actually likes it because it's in his DNA and Harry is a good slave owner unlike those bad, mean slave owners. Also freeing slaves is silly because they like it (ignore the one, happily freed slave.)