So you have no connection to the indians, no investment in them at all, as you say, then why are you so upset by this? What aspect of your culture and history is this scrubbing?
It's a baseball team changing a name after, as they say, consulting with native american groups across the country. They've had decades of hostility from native groups, including annual opening day protests, and had already removed Chief Wahoo.
I don't think I'll ever understand the outrage culture around this kind of stuff. They've been under fire for ages about this issue, they just didn't care enough until recently to do something about it. Now they finally do, native groups get a win, and as you say, it does not impact you at all emotionally, but here we are. I guess I just don't see accomodating a group as a loss for me, but I'm clearly in the minority here.
Also, for what it's worth, I think this is built on decades of fans and management responses (or in management's case, lack thereof) to native groups primarily upset about "Chief Wahoo". I think there's still a pretty good argument to be made against using a historically horribly marginalized group as your business mascot, but keeping a bucktoothed cartoon caricature depicting a marginalized group, then refusing to do anything in the face of widespread complaints from members of the group it depicts was pretty crummy. If the extent of it had just been "The Indians", they'd still get flack, but I don't think they'd be changing their name today. They retired it in 2018, but by that point I don't think it made enough of a difference to stop what was coming.