There is nothing wrong with him explaining the difference between Persian and Arab. I get some hate Arabs but they see them as people that ruled them. Let's not do this annoying self-righteous behaviour because how many Somalis like say we are not arab or black? We just want people to acknowledge us as unique and not apart of those dominant groups. Persians are not Arabs in the same way Turkish people aren't.
Many Iranians are proud people and don't like being inferior to other groups that is all. Some of the royalist ones can be annoying but there are a group of people who have suffered a lot and had war with Arabs like Saddam. If he this guy was racist or white supremacist he wouldn't claim India where Persians are mixed in with.