Well, yeah. That's the idea. Why would they go this far and not go all the way? They know damn good and well that as long as they keep things just barely on the end where genocide isn't stated as a goal, and they maintain a position of alliance with most of the west, nobody is going to actually stop them.
Hell, without starting a world war, I'm not even sure they can be stopped.
On the world stage? There aren't enough nations with power that actually care about Palestine. Yeah, leaders will make noise and pretend to care, but Palestine offers nothing to the major powers worth intervening for.
Sounds sociopathic, right? That's the leaders of most of the world. People drawn to power rarely have the ethical rigor to wield said power. Those that do, still have to deal with oligopoly, hidden fascists, and the reality that no nation can really take action without upsetting the whole damn thing.