This is a bad thing because there was a story of a cheerleader who was wearing a headdress with feathers, doing flips and entertaining the crowd. What she didn't know, was that each feather represents a person who has lost their lives in battle. This is a disgrace to the Native American culture.
It isn't only Native Americans. Muslims and African Americans are also being offended.
How are these cultures being honored? Most of these team names are racial slurs that we don't know. If you look back at American history, Native Americans and other non-Americans were shamed by the pilgrims. This is something that still goes on today.
Some mascots in sports offend individuals, and groups alike. This is why they need to change mascots before more people are offended.