83% of citizens in Gaza are civilians. Let's take a ballpark estimate and say 9,000 people are killed, and 65,000 are injured. Giving Israel some slack, let's also say that they're at least aiming for terrorist, and 70% civilians are in the mix of numbers. That's still 6,300 civilians dead and 45500 injured.
How would you like to have all your friends killed just because you so happened to have lived in the same city a gang did?