IME, bourgeois identity politics is mostly popular in members of the petit bourgeoisie and the proletarian intelligentsia (which maps loosely to the dominant American use of the term “upper middle class”, which is really tied to any coherent model of economic class), but seemingly slightly more (Proportionately) in the groups it on its own term seeks to extend inclusion to than Whites.
The attitude that your comment reflects crops up a lot in relation to, for example, the Washington Redskins naming controversy. Folks who like the current name are always bringing up a couple of examples of Native Americans who say they “don’t care” about the name, and claiming that it’s really only white liberals who are offended; meanwhile, in my experience, the large majority of Natives actually do care very much, and are upset that a racial slur used for their ethnicity is being used as the name of a sports team.
I found this comment rather funny, because if CGP Grey is correct [0] the preferred term by American Indians is "American Indian", NOT "Native American". So you're claiming knowledge of the general opinion of a group, while not using the group's preferred name for themselves.
This is one of those things you can find out for yourself: go to a pow-wow (non-native visitors are typically very welcome) and ask the people there how they usually refer to themselves.