These are tough issues. I think these names could be retained IF the descriptions / depiction of the logos are respectful (including ours!), but explain that to peoples that have had everything taken away from them and then see these names—once despised—being touted for sports glory and material gain.
Very tough and emotional issues.
The people outraged are mostly non-natives. But that's what you get in PC culture run rampant. I agree that as long as the logo is respectful, who cares? Anything could be found "offensive" in 2018.