I cannot understand this widespread enmity towards Iran from ME countries as well as even my own country, the USA, though the latter seems to be going towards an amicable state (hopefully). Of all the ME countries, Iran is the one with deep cultural and progressive history. Even though the Khomeni junta was a disaster, Iran has tried and accomplished a good turnaround since his passing away. Iranians are not religious zealots or prone extremism. I've seen a higher proportion of students from Iran excel in advanced studies....
The gist of it being, the world needs countries like Iran taking the leadership of the otherwise chaotic bordering on barbaric islamic world! Cultivating and engaging with Iran has a much better peace dividend than others.