"Azeri" identity is a rather recent phenomenon. Not long ago, these groups were just called "Torks" in Iran. If you count Azeris, Turkmen, Ghashqais, horosani turks and the ones who are settled in bigger cities then the number will go as high as ~30%.
I do not see the problem here, have Khamenei, Bagheri, Pazeshkian, Nasirzadeh etc said something anti-Iran? they are all Turks. Why do people make it an issue? Iran today is a united nation because of Turk Shia Militants otherwise it would have been divided into 7 states.