Of course it used to always happen, no denying that at all, i am not ignorant to history. But after the world wars of the last century, the international community started making rules about these sort of things, for the British to just give Palestinian territory to the Jewish like that is blatant robbery. We're clever enough now to stop these kind of things from happening.
Would you be ok with the Berbers in Libya, Algeria, Tunisia and Morocco moving to Belgium and creating a state there?