First, it doesn’t really matter. I wasn’t involved in whatever started it.Why do you think they hate us?
Perhaps because of our decades of interventionism in the region, including coup'ing their leaders?
I remember the hostages they took in 1979. Over what? A dude getting medical help?
Or did this start when they were Persians at the gates of thermopylae? Whatever it was, how does any of that help now?
But come to think of it, nobody liked Persians back then either.