Poison Trail
They’re the self-acclaimed “only democracy in the Middle East” and the sole regional power the US is on stable grounds with. If they were to, say, switch over to being more in favor with Russia and China, it would cause significant trouble when it comes to being able to assert pressure on the surrounding countries.
Of course, this comes as a double-edged sword as it turns out that Netanyahu is all too happy to push the limits of said democracy and take the US for granted in their support for genocide.