Did not state that. Stevens was attacked because of the gun running operations through Libya. It is an acknowledged fact that Stevens and the CIA were acquiring and destroying old and nonfunctional arms in Libya. Buying them from terrorists and citizens. What were they doing with the operational weapons they acquired ? We do not know. The assassination attempts on Assad where carried out by Sunni's with backing from the US and NATO
That being said, why did Obama pay $8 billion to the Muslim Brotherhood to turn over a large part of the Sinai Peninsula to Hamas, a Sunni organization? How does your theory relate to this known fact? That Morsi insulted Iran??????????? For $8 billion dollars? How do you explain it?
Morsi was taken down by the Egyptian Military because he stated Egypt was going to actively support the Syrian rebels. The Egyptian military stated that was the last straw for Morsi. Obama is supporting the Sunni. That is fairly clear. Morsi was also trying to reestablish Egyptian ties with Iran. So there is no problem with your observation. Morsi is now gone so your point is mute anyway.