It's a thought experiment. You can do whatever you want with thought experiments.
And in fact, you even touch on the experiment results in your post. Quote "What about if the Jewish state had been formed between Kenya and Tanzania (as was mooted at one point). I imagine the tribes from that area who would have been pushed out would be pretty unhappy about it, especially if that area had become very wealthy."
I have no idea why you include wealthy, but there is a hint in your post that I get in my thought experiment result. That it is not so much about Israel being Jewish, it is the location. That perhaps if the Jewish state was elsewhere, there would not be the same conflict.
And no, I am not saying Israel should be moved. It is a thought experiment. But it is an experiment that potentially removes accusations of antisemitism from those states being accused of it.