Where a lot of people go wrong in answering this question is in the assumption that Israel is somehow getting the US (and the West in general) to do its bidding. As if that relatively small country and economy is pushing the world's leading superpower around. If anything it's actually the other way round: the US supports Israel because it's in the US' interests to do so. Israel is the major military power in a strategically key region. It's useful to the US. And, to a considerable extent, Israel still depends on the US for its military and especially diplomatic support.
That's not to say that Israel is the puppet of the US or the West, or to deny that it has its own interests and agendas which are sometimes at odds with those of the US. Nor is it to say that Israel is simply the creation of the West. It's just about recognising that the overall asymmetry of power in the US-Israel relationship is massively in the US' favour.
It's important to get this right, both because seeing where the power actually lies can help to end the current slaughter and eventually the illegal occupation, and also because myths of limitless Israeli power manipulating the West are where criticism of Israel sometimes does become antisemitism, in my view.
