And yet, here you are putting words in her mouth and intentions in her mind. At no point did she say she thinks her ancestors originated in America! She takes issue with the Bering Land hypothesis because it is a scientifically flawed argument (which she argued at length) and is used to deprive Indigenous Peoples of their rights and sovereignty.
Did you even bother to read her article, or did you just assume things based on the title? It sounds like you are the one projecting, claiming she thinks she's better than others when you think yourself superior to her. That's certainly indicated in our pedantic and condescending attitude.