If you “fight back” by murdering festival goers and civilians, you’re the bad guy. Hamas also knew that their attack would bring about a heavy response, but they don’t mind because they just use the Palestinian people as a human shield. Hamas are not freedom fighters, and if they had control of the region it would be nothing more than what we’re currently seeing in Afghanistan with the Taliban in charge. You think Hamas will respect the rights of women, children, minority groups etc??
By the way Hamas is backed by Iran, Turkey, China, Russia… But they’re the good guys?