Admittedly there's a tad more to it than this but Larry Derfner in the J'Post does sum it up rather well:
Given the way Israel behaves now, it’s pretty sad to remember that it was envisioned as a country where the Jews ran their own national affairs – but nobody else’s.
Now it’s not enough for Israel to have its own coast, its own territorial waters, its own airspace – no, we’ve got to control Gaza’s coast, Gaza’s territorial waters, Gaza’s airspace, too. The Gaza Strip is part of our sphere of influence. Let any Turkish ship, Libyan ship or any other ship we don’t like try to sail into Gaza, and they’ll get a taste of gunboat diplomacy, Israeli-style. Let anyone try to fly a plane in or out of Gaza and they’ll be at the mercy of the Israel Air Force.
Is this what any decent, fair-minded, peace-loving Zionist [cough! My edit] ever had in mind?
We’ve gone from being a Jewish state to being a Jewish mini-empire. A Jewish hegemon.
We fly spy planes over Lebanon on a daily basis. We blew up the beginnings of a nuclear reactor in Syria. We run the lives of two million Palestinians in the West Bank and take their land piece by piece.
Why? Because might makes right. If anybody tried to blockade our coast and our airspace, if anybody flew spy planes over us, if anybody blew up one of our nuclear installations, if anybody ruled our lives at gunpoint and built foreign settlements on our land, we’d kill whoever we had to kill to stop it.