Here's my "I don't have a side, and this what I've learned." take:
The only "good guys" in this war, are the civilians getting killed.
The Hamas is a terrorist group that has essentially taken over the "Palestinian area" and they are blowing up Israel.
Israel doesn't like that, (which they shouldn't,) so to eliminate the Hamas they have been bombing schools and hospitals and shooting randomly into large crowds, (which they shouldn't.)
Everybody wants the other people to stop killing their people, so they kill the other people, which causes the other people to kill more of the first people, and so on.
Many people who are not involved in the killing feel more of an attachment to one side than the other, so they would rather see that side succeed, and more times than not, they justify "their team's" atrocities.
War. War never changes.