Hamas is a legitimate resistance group exercising their legitimate, legal right under international law to violently resist unlawful colonization, occupation, land-theft, and genocide. They have every right to exist, they have every right to use violence against settlers who should leave and give back the stolen land.

If you want more moderate types, know that the zionists intentionally crushed them and propped up Hamas to create just this kind of argument and by spouting it you're carrying water for them. Only the end of the occupation and the formation of a full Palestinian state will result in the breathing room for the creation of moderate groups and opinions.