ASSSSad might be a piece of shit, but he is 100 fold better than the Islamofacist terrorist that are trying to overthrow him. I applaud Obama from staying out of it. If ASSSad falls, then we have a caliphate/Taliban Islamist group taking over.
The devil we know is 100 fold better than the devil we don't!
The US should offer diplomatic support and organizational and humanitarian aid to secular groups that seek a democratic government. Other than that, we should allow the Syrians to work out their own problems.
If the US did what you suggest there would be trouble with Syria's ally Russia and perhaps China as well. "Both Russia and China have significant economic and military relations with Syria. As permanent members of the UN Security Council, the countries have vetoed three Western-backed resolutions aimed at isolating the Assad regime".
As things stand the US through NATO is a powerful presence in the area. "Turkey has permitted Syrian refugees and opposition forces to reside within its borders. Saudi Arabia and Qatar have provided the Syrian opposition with small arms, but have thus far refrained from supplying heavy weaponry, such as shoulder-fired rockets. U.S. officials have cautioned against providing such arms, saying they may end up in the hands of jihadists."
Syria's Crisis and the Global Response - Council on Foreign Relations