This is not the difficult question that it is for some artists (Polanski, Woody Allen, etc.) "HP is a mildly entertaining hodgepodge of fantasy tropes" and "Rowling uses the HP money to fund a hateful discrimination campaign" are two true and logically independent statements.
I don't think we need to cast judgement about the quality of the HP books to say that Rowling is a menace today and her work can't be rewarded