Ibuki: Doesn't want to dress like a girl or act feminine
Also Ibuki: Wants Tomo to be conscious of her as a girl
I dunno man, cant have the cake and eat it at the same time. Pick one.
The RAW uses the term ヤンキー or Yankee. Which are more a term for "delinquent" than "American" in japanese. In japanese, american would translate to アメリカ人(Amerika-jin) so a most likely a translation error or MTL derp.