It depends. I think in this world it’s impossible to purchase something without most of your money going into the bank account of a terrible human being. Buying a chocolate bar perpetuates child slavery. One could argue buying meat perpetuates climate change. I think it’s a great example of cognitive dissonance if someone refuses to buy Harry Potter merchandise because JK Rowling is a terrible person, but then continues to buy Nestle products.

For me, I do my best to not buy anything at all. I live a minimalist lifestyle. If all of my purchases are going to cause some harm, I will purchase the minimum amount of items necessary.