moreover I was born and raised near Kansas City.
I always thought some of the symbols used by the Chiefs were OK... such as the arrowhead. As a young lad I would routinely find arrowheads and axeheads on our property in Johnson County KS. My father collected them and created a display case for them including any thoughts or speculations on what tribe might have created them, etc.
As a Chiefs fan in the Len Dawson era (Superbowl I, IV), the feathered war bonnet and "war paint" horse that the main cheerleader mascot would ride around the stadium after every touchdown was the only Native American imagery associated with the football team that I can remember (other than the name/logo). Nobody did the "war whoop" or tomahawk chop. That all came later and was borrowed from Atlanta Braves and the racist aholes there. I wish someone in the more polite midwest would point this out and the fans would drop it.
Later I attended the Univ. of Kansas... mascot Jayhawk, celebration at basketball games was "waving fields of wheat" and the haunting Rock Chalk chant (referring to the limestone bluff on which the University was built) to be perfectly fine with everyone... no complaints from any group that i can recall.
https://www.google.com/search?q=rock+chalk+chant&oq=rock+chalk+chant&aqs=chrome..69i57j0i512l5j0i22i30i625l4.5740j0j15&sourceid=chrome&ie=UTF-8#fpstate=ive&vld=cid
1c03c77,vid:h51be27dN8c
I think the Chiefs should be renamed and do something similar to the Univ of Kansas... name the team after a geological artifact or historical aspect of the region.