This is pure scapegoating. The Iranian society is extremely prejudiced against Afghani people, who have been systematically put into the same class as women in the Iranian state: second class humans. Not even citizens, as many second and third Gen immigrants still can't receive citizenship.
Israel is commiting a genocide, Iran uses this as a pretense to ramp up oppression and strengthen its grip on its people.
Ach, das mit dem "Nie wieder", das ist ja auch nur so ne lästige Floskel. Mir ist kalt, ich will endlich wieder Russisches Öl haben. Wir haben doch auch wichtigere Probleme in Deutschland.