No. This whole notion is bizarre and feels out of far right wing "keep the races separate" mentality yet is employed by the far left.
Also, the internet gives everyone a voice so a handful can be focused on and magnified. I'm guessing vast majority of people are thousands of greater concerns than prom dresses.
Try to say something like "heathenry and viking imagery should belong to germanic peoples" instead and watch out the shitstorm.
It reminds me how criticizingt that norse deity being black on the Marvel movies being called racist while the some of the Gods of Egypt being white was also racist and cultural apropriation (while, hell, the very egyptian Book of the Dead claimed Horus had blue eyes).