Disagree. It's ethical to support the young actors and the actors who took a chance. It's ethical to wrestle control over a harmless idea initiated by harmful people. It's ethical to not hate something for something it did not do.
You think it's ethical to attack Rowling by destroying her work and crippling her funding instead of attacking the politicians who accept her funding and rethoric?
You think it's ethical to destroy something liked by many because its usage funds those who harm? Well, that will go sideways fast because wow, there's just so much to be destroyed. Why start with Harry Potter when there's much more important things to end first?
I'm not saying stop. Just that the priorities are wrong, the focus is wrong and the painted target is illusory. Why not focus on the real instead of the imaginary?
Ethical consumption. Hah.