I would like to bring myself back from a normative discussion to a realist one. Journalists say that Obama fu**ed-up. Why? Because he marked a red line for Syria, the chemical weaponry line, and when Israeli intelligence informed him of the intercepts of Syrian army ordering the use of CW months ago, he did nothing. And now he appeals to the Congress even though his action is unpopular and he can act without consulting Congress. All of this makes him appear incompetent.
You can't just go around, making threats that you don't stand behind. If you mark a red line, it's a red line no matter what. If you fail to take action, your enemies would disregard any further threats. Obama didn't just draw a red line in Syria, he also did in Iran, about their nuclear program. Obama's weakness would encourage Israel to act alone against Iran. Israel did it before, destroying a nuclear reactor in Iraq in 1981. PM Netanyahu said more than once that if the world does not take serious actions to stop Iran from acquiring nukes, Israel will, alone.
That is something USA does not want to happen.
I think the big issue is that no one's sure if this is REALLY a humanitarian intervention, or just another resources grab like Iraq. Plus, with the allies Syria has (Russia being a big one) this whole thing has the possibility to turn into something far worse.
I don't know why everyone turns things like this into a dick waving contest. Oooh, "red lines." Obama should have kept his mouth shut and instead of offering military aid, offered food, water, medical supplies, etc. Our presence there is only going to make the entire situation worse just like it has in Iraq.
But going to back to one of your earlier posts about this generation "not caring," I don't think it's so much that, it's just that we're exhausted. We've been in Iraq for over 10 years. And we've come to find out that that war was started on the basis of a lie. I don't know where you're from, but getting constantly bombarded with coverage about the war, seeing what it does to the troops who are involved in it, and knowing who's profiting from it, it wears you down. The US isn't the only country in the world with a competent military. Let the worthless UN or someone else do some of the heavy lifting for once. That, and every war/conflict being about reaction/counter-reaction. Things like Pearl Harbor, 9/11, Bay of Pigs, etc weren't things that came out of the blue, there was a series of events that lead up to them. We're TOLD they came out of the blue, but it's just public opinion being manipulated. And after being manipulated for so long, you start to tune out. "Oh, gee, another war? Great." For us, more military action is just another day in the US. So if people seem cynical about the whole thing, that's part of the reason why.
Israel needs to shut the fuck up and simmer down too, but that's a whole other thread.