Hamas hasn't held an election since 2006. In that election, 45% of the population voted for Hamas, 42% voted for the Fatah, and the remaining 13% voted for smaller parties. Half of Gaza is under 18 and 65% percent of the population is younger than the 25 years old.
So what you're saying is that Gazans should expect to be murdered because, in an election held when the majority of them were too young to vote and half of them weren't even alive, a minority of people voted for extremists. Great point dude.