Rather than describe Hamas as a terrorist group, I would say they’re a group that uses terror as a weapon and I think there’s a significant difference there. You’ll find a lot of Israeli commentators, amongst others, can understand and make in their writing. There is a difference there.
But the Palestinian attitude to terror as a weapon is dictated by their sense of the ability to achieve a settlement. If they think there’s a chance that there can be a negotiated settlement, as they did in the aftermath of the Oslo accords in the mid-1990s, their view of violence falls. But it’s when they see their land being taken, when they see their water resources being consumed, when they see Gaza being converted into a prison, they believe in violence. It’s a part of the world where all sides are very familiar with the notion of revenge and vengeance.