Gaza has a long Mediterranean coast. That is, a coast between international waters and Gaza. They also have airspace, and flight paths into Gazan airspace over international waters. Israel blocks ships and planes from entering Gaza through these routes, which have NOTHING to do with Israel's borders with Gaza. Why you keep harping on Israel's right to control trade over its border with Gaza is beyond me. I have stated quite clearly that they do. The blockade of the Gaza coast and of Gaza airspace, however, is an act of war equivalent to Egypt blocking Israeli shipping through the Straits of Tiran. There is no false equivalence.
Once again, feel free to argue that Israel is justified in doing this or that they are justified in maintaining their occupation of Gaza. Just don't try to claim that Israel's actions are peaceful. A state of war continues as long as Israel maintains the blockade and thus occupation.