Eonan that type of mindset is kind of fucking retarded. I salute you for your service, sir, but to act like the Syrian people didnt peacefully protest at the ignition of the Arab Spring is naive. They only turned to violence once Assad decided to start using live fire on civilians. Shit has just degraded because of the length of the conflict( Al Nusra Front, Al qeada etc), 2 and a half years running. Aleppo is a battlefield, Homs is a battlefield, and now the outskirts of Damascus is a battlefield. Arab jihadis fight their holy war wherever it is convenient, and right now thats Syria.
Believe it or nor, but radical Muslims will fight eachother just as well as Americans or any other non Arab/Muslim faction. As long as there are ideological differences (in this case Assad being of the Alawite sect) and a cause (oppression of their people) then there is a breeding ground for jihad. Think about it, if you are a young Jihadi who wants to do something important in his life (to them anyway) you would probably rather link up with other like-minded Muslim fighters who are up against a Syrian government who is using Soviet era weaponry, and not the high-tech United States who is increasingly turning to asymmetrical warfare (drones, special forces, spies) and have an unliimited budget.
And if the United States does strike Syria, this will turn into a proxy war in a hurry. Russia will start to strike opposition targets covertly soon after, and kick up its support for the Assad government exponentially.
