Um yes I did post possible outcomes in my posts. We attack, then Isreal is attacked, then Isreal attacks whoever attacked them. More people are killed. More refugees pour out of Syria. More violence and more death. Furthermore I also pointed out that there is no idea who would come into power if Assad is gone. That there would be disparate groups that would then have access to lots of weapons left in the vacuum including chemical weapons.
I like it. Your humanitarian no against chemical weapons involves more violence and death. Furthermore the entire world is not yet convinced of who even released the weapons. Finally the groups your humanitarian actions will be aiding have executed lots of innocent people.