What they sell you on Syria is different from what internal U.S. documents say.
It isn't Sunni vs. Shia in Syria: most Sunnis fight on the side of the government, against jihadist mercenaries from 100 countries.
U.S. documents acknowledge the 'rebels' lack support on the ground in Syria, with Bashar Al-Assad as the leading popular figure. There are no 'moderate' opposition fighters, and the opposition is constructed by the U.S. government.
The CIA trained 10,000 fighter-advisors who went into Syria and became enmeshed with the most virulent extremist organizations in the entire world, including Al-Qaeda. The U.S. has also admitted ISIS' usefulness in weakening the Syrian government.
Opposition to the ongoing and illegal U.S. intervention in Syria should be a no-brainer for activists in the West, but too many have drunk the 'Syrian rebel' Kool-Aid.
US Role as State Sponsor of Terrorism Implied in US Congressional Research Service Report on Syria Conflict