Which figures are you using? Hamas figures can be taken with a pinch of salt. The best approximation I saw was 3:1 non combatants to combatants which as awful as it sounds is actually very good for dense urban warfare.
Hamas are not fighting like a regular countries army would fight. They do not care for their own civilians
Do you kiss your jihadist family with that mouth? Or did they all go to paradise detonating themselves already?