It means, as if you did not know, the indiscriminate killing of civilians, destruction of infrastructure to a level beyond all necessity… unless of course one is seeking a genocidal solution to uppity Palestinian Semites given that they tend to rise up now and again when they are killed, maimed and kicked off their ancestral land. To make this clearer for you, the 06/10 killings of several hundred Israelis (discounting fatalities due to the Hannibal directive) resulted in 80% of buildings destroyed in Gaza and at least 50,000 Palestinian men, women and children dead, (hundreds of thousands injured)– and those are only the bodies that they can find. So, what do you figure, 100:1? That is probably conservative.