The message isn’t to stop people from being racist. It’s to stop the racists from being part of their fanbase. Macho sports are really susceptible to concentrations of assholes and they need to be actively discouraged or they will take over.
While you are correct in your point it is still giving to much ground to his argument.
Even if it is unnatural, who cares. Consent makes humanity happier and more stable on all fronts. If it isn’t natural it is a social technology and we use those to improve our lives every day.
Yeah, it’s Harry Potter. Social change is the enemy in the book. At no point does anyone try to improve anything in the book. They don’t even oppose evil that much. They just oppose it when the existing evil tries to go too far by the current standards of evil.
Humor is a kind of art and he doesn’t understand art.