If you will read the history of those countries who use the names of indigenous peoples then you will come to understand why they are using those names. It is a sign of respect and honor, they are using those names to remind them that once the land that they are occupying have ones been the land of the indigenous people. Thus having those name doesnt imply disrespect but respect.
Agreed 100%. Not just in the United States, but also in countries such as New Zealand, Australia and Brazil we have sports teams named after the indigenous people. It is a honor to these people.