As a trans person, I have no idea why people are harping on you for liking HP before learning JKR was a bigot. As such, I never ascribe bigotry to people who simply purchase HP-related stuff. They may not know and may not be as online as I am to know the harm that they are contributing towards. However, if after they do find out, they continue to patronize said thing, I consider them as a bigot or at least that bigotry isn’t a dealbreaker for them. I believe the saying is if you sit down at a table with 10 Nazis, there are 11 Nazis at the table. To cap this off, though, I will paraphrase the idea of perfection being the enemy of progress.