All three of those countries are very different with distinct political cultures and histories of  resistance to imperialist subjugation. While Syria nominally shares its Baathist ideology with Iraq, it is not really like those countries, though it is also now collateral damage from the US war on Iraq. Probably Syria will dissolve into smaller polities; it is very unlikely that an Alawite minority will be able to continue to dominate a greater Syria with a Sunni majority. In any event, uncertainty about what comes next is no argument for supporting Assad. He is a mass murderer and a war criminal.