Washington and Clevelend should change their names and logos as they are blatantly still racist. However, Braves, Warriors, Chiefs, and Blackhawks are not. The first three could all clearly be seen as paying honor to a group of people and the last is a literal person who lived in the region where the team is now.
I don't see the issue here, what are these team nicknames doing at this moment that is harming anyone? We live in a world where cops have been given near impunity to murder black people with no need for a defense other than "I felt threatened." whether that is believable or not. A world where being the wrong shade of brown within a few hundred miles of the border might get you thrown out of the country, citizen or not. Where the color of your skin at birth changes the odds that you will graduate from HS, how much you will get paid, and if you'll go to jail.
I think we have plenty to issues to keep us busy before we worry about how some NBA team got its name and what the logo looked like 60 years ago. We have public opinion on our side for the first time in a long time, and we're going to screw that up by going after things that most people are going to see as frivolous. It's the exact kind of thing that racists will use to mute the movement.