You must have flunked math.
I believe part of the problem is that you are having trouble reconciling Israel's slaughter of innocent civilians with the Syrian slaughter of innocent civilians. Certainly Goober is doing all kinds of contortions to make it seem like one oppressive and unjust regime slaughtering innocent civilians is much different than the other oppressive and unjust regime slaughtering innocent civilians, when fundamentally its the same thing.
Also, referencing Colpy's post, he describes an acceptable armed militant to civilian kill ratio. He wrote:
They killed 1300 people. Somewhere between 25 and 50 % of those were militants. they were carefully avoiding civilian casualties as much as possible while achieving their strategic ends.
I suspect that since the Syrian government isn't shelling/bombing evacuation shelters, schools, ambulances, medical workers, humanitarian aid convoys or preventing the Red Cross from accessing and evacuating wounded civilians... that the Syrian armed militant to civilian to militant kill ratio to achieve their strategic ends is probably much lower than the Israeli civilian to militant kill ratio. Probably closer to the much better ratio achieved by the Gaza militants. (77% of their casualties were Israeli soldiers, only 23% were civilians)
For the record, I oppose violence, even to gain freedom and justice... I see all violent belligerents on all sides of an armed conflict as guilty and all civilians on both sides as innocent.
In violent conflicts, I'm on the side of innocent civilians who just want to live in peace..