Thanks for the responses to my questions.

But this question still remains:
If Hamas is using civilians as human shields (which I believe) then why is Israel still using air strikes? Like I mentioned, if a target is identified as an enemy position, if Hamas is using civilians as shields, are airstrikes or ground attacks better to minimize collateral damage? The way I see it, an airstrike is done in the comfort of behind the front lines. A ground assault is dirty, violent, and ugly. One will result in dead enemy and dead civilians. The other will result in dead combatants
on both sides and also dead civilians. So which is more in line with the geneva convention? I'm not saying combatant's lives are less precious, but they are combatants and know the consequences.
I believe this one aspect of the conflict is why the whole world is polarized as to what is happening over there.
Please don't misunderstand me. I'm with Israel. But I'm trying to understand the efforts (or lack of) avoidance of innocent civilian casualties.