Yes, sadly - the way of the world.
United States, stealing from Mexico, who stole from Spain, who stole from the Aztecs, who stole from the Toltecs. Incidentally, the Toltecs were bloody murderers themselves... the list goes on.
You bet, Israel is a privileged friend of Britain and the United States. They are an ally, no denying it, and far from perfect. But they don't cheer in the streets when US planes are hijacked and flown into downtown buildings. Tad bit of a reason to continue favouring them as a friend and ally, perhaps, because, well... they are a friend and ally.
People forget really fast. The League of Nations (the UN's equally milquetoast precursor that passed for 'international law' back then) was perfectly comfortable with the assignation of what is now Israel and Jordan to Britain after WWI. I suppose there was always the option of giving it to the defeated Ottoman Turks, with a bottle of champagne and a note, but... no.
The British came up with the Balfour Declaration (Jewish homeland). It was clumsy, and to deal with the hatred from just allowing Jews to live there (remember, no Jewish state at all yet) they eventually made an Arab province called Transjordan. With the approval of the League of Nations. In hindsight, it was almost begging to create warring states this way, mmm?
But there is no going back. Israel exists, Transjordan became Jordan and now has a 'king' - a 'king' of an area that was nothing more than a British-defined province. Odd, isn't it?
Coming roundabout, this is why I think it's really relevant to answer the questions of modern current events. What's a moral fellow to do? I really wish I *had* an answer for Israel, that didn't involve striking back hard.