I'm aware of the Heracles/Hercules difference. It was inaccurate, and it was also fun. Perhaps you're not really seeing my point. I dissociate culture from ethnicity rather strongly. Why? Because to actually contribute to a culture, you need to make an effort. Being born in an ethnicity is 0 effort. It's simply something you had from the beginning.

It would be therefore quite arrogant for me to claim that no one should wear a dress from the culture I was born in.