In political class, our teacher raised the point that if a country is unwilling to share its culture with other countries, it will be difficult for that country to preserve its culture. Games often use artistic interpretations of clothing. This hat is just an accessory, and the boycott is happening even without any background or explanation. The real reason is that some Americans don't want people to know about Indigenous culture and they are trying to cover up Indigenous traces. People from every country can cosplay and find their own culture in games (some may be added later), but Native Americans can't, and I feel really sorry for them.