Round up all of the males older than 10. Disarm them and sort them out later.
A very wise idea!
The correct thing to do is to treat them as POWs. Transfer them to a POW camp in the Negev Desert. They'll have to undergo dehamasification (if that's possible). Whole of Gaza Strip is going to have to be transformed into a Stasi style police state.
Israel probably does not have the tolerance to do that.
So it's likely Hamas will regroup and attack Israel in a couple years after the West and the Gulf States help them to rebuild Gaza.
The only solution that's just is one in which Israel no longer has a front along Gaza. Remove all the guilty (the 0.1% Christian arabs might be able to stay). The rest all voted for Hamas or other flavors of jihadis. Relocate them all, outside of range of Israel. Collect and post biomarkers on all evicted alive, so they can't sneak back into Israel and so any other country can try to keep them out.
There is unfortunately, currently, according all their co-religionists, only one place willing to accept them. So until someplace additional agrees to accept any, they all get sent to Allah's paradise the Koran stated way. Those headed there and their supporters should all be nearly as happy about that as those of us still here.
Round up all of the males older than 10 or able to wear a bomb belt, or pack a grenade, have then introduced to Ma Duce.