And in the end Israel killed 100x as many people as Hamas did during this time. Now that's certainly a proportional response!
By that logic, the invasion of Afghanistan was a grossly disproportionate response to the 9/11 attacks. Do you oppose it? Also, the Pacific War against Japan was an extremely "disproportionate" response to Pearl Harbor. Again, do you think it was wrong?
I don't quite understand the need to use "proportionality" as a response, unless we're specifically framing this conflict with the propagandized idea of "self defense" in mind.
To answer your questions above, Dirty South, (although it wasn't directed at me, eh, what the hell) I say yes.