> The last hour would not come unless the Muslims will fight against the Jews and the Muslims would kill them until the Jews would hide themselves behind a stone or a tree and a stone or a tree would say: Muslim, or the servant of Allah, there is a Jew behind me; come and kill him; but the tree Gharqad would not say, for it is the tree of the Jews. Sahih Muslim 2922

When they're surrounded on every side by people who devote their lives to Hadith such as these, I can't blame them. Their enemies set up bases under hospitals, schools. Their wives and children are human shields. I think they're doing pretty well with the situation they've been handed. The situation is more complex than "They're firing on civilian populations", because their enemy fights in civilian clothing, and hides in civilian crowds. They're stuck between a rock and a hard place and are doing what they can to survive.