People cared about "how much Indian" the author was, as they thought she was not Indian enough to talk about the plight of Native Americans, as she did not possess the indigenous stereotypes they believed she needed to have.
We can reach this conclusion because:
All these features made people question how "indigenous" Washuta is, as they devalued everything she had to say about the situation of Native Americans since they didn't consider her indigenous enough to talk about it.
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