I have Persian friends. They were not muslim, but Bahai, and fled the country in 1978.
They are wonderful people, very, very intelligent, good looking, and hardworking, non-dogmatic, creative people.
Since they refer only to Persia, and never to Iran,
I think it would be good to use the word "Persian" for the "anti-ayatolla Iranians/Persians" and Iranese for the "ayatolla-shia-nazi-muslims".
We may not make the mistake of calling ALL people of Iranian/Persian descent Iranian-shia-muslims.
There are good people too over there, who are brutally oppressed by the satanic ayatolla regime.