I see your point, but even still no one objects to the Fighting Irish or Boston Celtics logos despite being every bit the caricature. Are we doing this out of respect for Native Americans, or is it to make ourselves feel noble while we (myself included) make no progress on their material concerns?

The whole "invaded their homeland and then slaughtered most of them" factor is certainly in play.

Are you being ironic or are you unaware of Irish history?

Many are woefully iggnorant of the trials of the Irish sadly.