The problem is that when Israel does not allow building materials into Gaza it is presented as collective punishment (or siege). But if Israel allows those in

The problem is that when Israel does not allow building materials into Gaza it is presented as collective punishment (or siege). But if Israel allows those in then they are used to build tunnels and bunkers. In Gaza it's Hamas that is responsible for the condition of the civilians. They also have a border with Egypt so it's impossible for Israel to impose a siege on them. Unfortunately, when you're a bad neighbour you can't expect other countries to keep an open border. When Israel had more open borders with the West Bank and allowed for free movement of Palestinians there were suicide bombings, stabbings, shooting and bus explosions. When Israel puts road blocks and builds walls to prevent those (successfully) it is collective punishment (which, honestly, is true). At any rate, this situation doesn't lend itself to simplistic interpretations or explanations. Whenever one is offered there is surely a political agenda behind it. Not every problem has a 140 character description or solution.