Tip o’ the hat to you sir.
I don’t believe the rebel-sympathy story is likely for a number of reasons. The scale of the attack was larger than anything the FSA could have feasibly orchestrated. There is signals intelligence intercepted by the Israelis that correlate with Syrian Army movements of weapons to the area. The rebels do not posses and cannot launch the missiles which were used to deliver the agent.
No one is talking about adding soldiers to the mix. Obama has been very clear that they’re talking about using cruise missiles and potentially imposing a no-fly zone. Western powers are already sending weapons. Turkey is doing the most in getting civilians out but you’re seriously underestimating the dangers there. How do you propose we get civilians out if the ones that are leaving are already being shot at by regime forces as they make a break for the border with Turkey?
Also: give me more info on your suggestion that it’s not unprecedented. I don’t know of a precedent in Syria, do you? Are you conflating this and the reports that rebels used chemical weapons too?
PS: if you want to help your best bet is to throw some money at the Red Crescent in Turkey:
http://www.kizilay.org.tr/english/sayfa.php?t=-Donate