The Seljuk are a people of Turkic origin. Armies of the Seljuk Empire clashed with the forces of the Byzantine Empire at the Manzikert Plains on August 26, 1071 AD. The Byzantine army was crushed and slaughtered by the victorious Seljuks. Emperor Romanos IV Diogenes was taken captive. The Byzantine strength was seriously weakened and Turkmens took control of Anatolia, where they spread.
He makes it sound like he was not wanted and they became mean to him. He believes its hitlers fault because before that they had just ignored them so it gradually turned into them being physical.