Israel may have withdrawn from Gaza and forcibly removed their settlers, but they did not end the occupation since they created a naval blockade and control all entrance and exits from Gaza and decide what is allowed in for two decades
I'm not sure why you were downvoted. Israel's position is that the ended they occupation. The United Nations on the other hand, still considered Gaza occupied under international law this whole time.
The only way one could argue that it is no longer occupied is to say there wasn't a continuous Israeli military presence of boots on ground inside of Gaza. It was still being surveilled by satellite and the entire perimeter, people venturing too far at sea from the coast would be shot, drones would occasionally bomb people, everything and everyone going in and out was controlled by Israel (until Hamas tunnels were built), all cell phones allowed in contained surveillance technology, a fence with military outposts was constructed on the perimeter, and Israel bombed the one airport they tried to build.
So arguing it was "no longer occupied" after they pulled out the settlers is disingenuous, unless you're trying to argue that it couldn't be both an occupation and a concentration camp.
