People tend to dislike the more powerful side? That's not what I've observed about human behaviour, or in this case specifically. Israel is cheered by people (mainly statists) the world over, and championed in the media, and talked up by Hollywood, and so on. The bully is the favoured winner here. People like to bet on a winner. It appears you haven't looked into this issue aside from hearing what the MSM wants you to think. "Hamas hides behind children" tells me you've been fed propaganda and don't have the full picture.
RE: The Face of Evil: Israeli War Crimes Mount as Relentless Assault on Gaza Continues Targeting Palestinian Civilians, Infrastructure