No you havent killed the thread, have been meaning to post but as soon as I take out the phone/tablet, two small sets of hands suddenly appear next to me to grab and press buttons 
I found this very interesting so thought you may too, not directly relevant but we can draw some comparisons.
Ibn Taymiyyah in Majmoo al Fatawaa, mentions of two groups. First is the group hadhrat Abu Bakr fought because they withheld zakaah. Second is the group of khwaarij in Nahrawan who hadhrat Ali fought. He writes that the al-Bughaat, or those who rebel, refuse to follow and try to remove a leader have a different status to the two groups, as the others have dissented from Islam.
I have to say I had never heard of this war against the zakaah-holders, so refusing to uphold this pillar is considered a grave act to commit. He mentions the same applies to those who refuse to follow or implement hajj, or to fast or violate the blood and wealth of others, even if they pronounce the shahadatayn as even the khwaarij are known for their unsound piety.
Of course this only applies to a group of people and not the leader, as the ahadith tell us to follow him be he moral or immoral, except in certain circumstances.
Hadhrat Ali faced rebellious people in Basra and Sham, but he fought them differently to the khwaarij. He fought them as brothers would brothers, and his way with thr khwaarij was not like that. Compare this to the genocide are so called leaders are committing agsinst their rebels! You are so right with the 'if i cant have you noone can' type mentality of leaders like Assad.
Ibn Taymiyyah also writes there are proven ahadith which established the consensus of Sahabah for the actions of Abu Bakr and Ali, unlike the fitna of people in Basra and Sham - where the sahabah disagreed as it was muslims fighting muslims.
So really those leaders and scholars etc who are labelling the current rebels as khwaarij are no different to the takfiris who accuse the leaders of kufr, without concrete proof.
Many of the scholars today agree if you have the means to bring about change through peaceful means it is ok to do so, but are unanimous it is best not to rebel as it will lead to greater fitna, as a general rule Islam says not to fight evil with evil. And rebelling would cause chaos, oppression, destruction, loss of life and much more. Especially when your leader possesses chemical weapons it seems
I like Ibn Taymiyyahs stance on this, he gives the hadith -
'There will be unjust, disloyal, and immoral leaders. Whoever believes in them, in spite of their lies, and helps them, he is not of me and I am not of him and he will not reach the hawdh.....'
Therefore the Prophet saw forbade helping the unjust in their injustice and he writes it is better to follow the middle way - between the khwaarij and the Murji'ah who follow the path of complete obedience to the rulers, even if they are unrighteous.
And no, there is not a chance in hell things can be resolved peacefully in Syria or Egypt, the military will never kiss and make up with the ousted MB members and followers and vice versa. They are quite likely being tortured in the notorious prisons as I type. Those who have lost everything will want to ensure their loved ones did not die in vain. What the solution is, I have no idea. I guess this is the catastrophe they try to prevent by suggesting obedience to the leader even if he is a tyrant.