Though my North American Indigenous history professor considered her "a bit overly crtitical at times" lol.
A very strange conclusion to draw especially since in iits final conclusion it bends over backwards to try to find a way the US can somehow "redeem" itself rather than admitting the obvious that future history can only be righted with its destruction. Was this professor white, by any chance? I can imagine how such a work would offend their white fragility.
Called it. There is no non-white fragility explanation for having that objection.