Not every, but I hope it is hard to deny that concentration of radicalized members of Hamas is very high in that area, they historically use civilians as human shield, thus casualties.
Wikipedia not evidence but result of coordinated pro-Hamas campaign, 8 editors banned by them
Hamas is claiming a total of around 70k. Israel is claiming a total of over 20k combatants. Thus at most Israel killed something under 50k innocents, and probably a lot less.