@JirehCrowell Hi! I think the problem for me is that whether I do harm by buying the product. Unfortunately, Rowling donates money she gets through the Harry Potter franchise to anti-trans charities.
Obviously though I admire her creativity and can like the characters, but at the same time I sadly cannot think of the art without considering the artist so I do my best not to buy into Harry Potter, e.g. merch, video games if that makes sense! :-)