Yes, Russian isn't nationality, it is ethnicity. The Russian Federation is still an empire. The Soviet Union in theory was the motherland for all peoples of the world. When it fell apart Russian nationalism became a prevailing ideology, and it didn't bode well with other ethnicities.It is complicated, only the ignorant people call them all Russians, even when talking about the former RSFSR. The ethnonym works fine most of the time, but to call a Buryat or an Yakut, Russkii I do not recommend.