Surely you jest. How is this attack supposed to remove Hamas? It seems designed to strengthen Hamas, just as Israel has been supporting Hamas since their formation.
The existence of Hamas prevents a united Palestinian people while simultaneously giving Israel the excuse to reject a 2-state solution. If Hamas didn't exist, Israel would have to create a Hamas from scratch.
This attack is supposed to remove Hamas by killing them, or forcing them to surrender. There's a lot of legit criticism of what Israel is doing, but if you think it's designed to bolster Hamas, then you're really misunderstanding what's happening.
My point is that Palestinians have their share of blame.
Parent comment blamed everything on israel when clearly Palestinians have a fair share of blame - you can't deny that.
They can be stopped by arresting/killing the members. Why wouldn't it be possible? Similar groups have been stopped.