So your answer to an untenable situation that can't be allowed to continue would be to do nothing. Often doing nothing is worse than doing something.
We could have the UN pass some resolutions to force the Lebanese to get rid of the bad actors so they could all live in peace, wait a sec, we already did that. Gee, guess asking them to be responsible for themselves does not work.
How about this idea, we could isolate them from the rest of the world until they start acting right and doing what they say they are going to do, no way that could take more than 10 years. Hold on, no that did not work in Iraq. How could that be? The full force and power of the UN can't make things happen. Inconceivable, perhaps we had a bad apple that was corrupt and making money off the situation, could never happen twice
How about this one. Since none of these people can get along without trying to kill each other, we let them fight it out until the Israelis kill everyone else in the area, then kick them out and keep it for ourselves. This is all clearly Israel's fault, why should they get to stay. We can turn it into a Kamp Krusty and send all the conservatives there.
Oh BTW, this 60 second attention span is not peculiar to conservatives, it is a side effect of the way people get into power here. No offense meant, but it makes you sound a bit more ridiculous when you say stuff like that.