Idk your situation but if you support harry potter after all the heinous shit jk has said she has and will do we are not and never will be friends, you are voting with your dollars to hurt people.
I havent paid a single cent to HP franchise in ages. But I still find books cool. Should I disregard quality/fun aspect of something even if creator of that thing is a POS and I havent gave them any money in a very long time?
You can’t easily change what you enjoy, I would take what you like from it and explore other similar properties. If hp is something that has special meaning to you i get it, I would just hope you don’t support the creator.