You know, the funny part is how the allegedly less-hardline Rouhani is even MORE disliked than his predecessor, and how the rest of the Middle East has caught on to Iran's sectarian meddling as Iran's regional popularity in the last several years has slid down:
http://www.pewglobal.org/2014/06/18/irans-global-image-largely-negative/
Iran often alleges that OTHERS are being sectarian to deflect attention away from how Iran is the one being sectarian all too often, like Iran backing sectarian leaders like Maliki and Assad and meddling in Lebanon via Hezbollah, and possible indirect involvement in the assassination of Lebanese leader Hariri since Hezbollah was likely responsible and Hezbollah is Iran's lapdog.
http://en.wikipedia.org/wiki/Assassination_of_Rafic_Hariri (Obama also backed Maliki but he would have backed a cow if it would have allowed him to exit Iraq sooner... and of course it was too soon. Bush was a catastrophe in foreign policy but Obama is pretty bad too.) That probably has something to do with Iran's unpopularity among Sunnis and rightfully so.
Similarly, Iran loves railing against US intervention in the Middle East (which we should have done long ago), drawing attention away from how Iran itself is one of the worst meddlers in the Middle East.