"Why even think, never mind rethink" I dont see Jew's or Christians or Hindu's declaring that all the Islamic countries be wiped off the map. Or saying "convert or die". So thinking about whether or not to support Israel who is constantly being attacked on one front or another is really quite simple.
Hamas says Egyptian mediation has restored calm along Israel, Gaza border (Haaretz)
from the article: Rethinking Jewish American deterrence