The main difference between Israel and worse global players is the wide range of westerners (including self described "liberal" ones) who tolerate or are willing to step up to endorse its vicious racism, its ethnic cleansing and its illegal settlement expansion both with trumped up accusations of antisemitism and whataboutism.

That naturally elicits a bit of a reaction.

By contrast I dont remember anybody calling anybody an Islamophobe because they condemned Mohammed bin Salman's killing of Khashoggi or invasion of Yemen.

There's also an element of what is done in Israel being done in our name, since it was essentially a remnant of European colonialism (a particularly shameful part of our history) and continues thanks to support from our governments.