You didn't answer the question. What would happen in that scenario?It would suck most definitely oppression is not fun. But do we have to protect and defend every group that is being oppressed? What about the Kurds, or some other tribe. I have not argued that Israel should restrict itself, or let the Muslims win. Merely that the west should not get involved. I can support the west coming in to protect a group from getting wiped out, but I don’t want us to fight for the rights and freedom of everyone. People need to protect their freedom themselves.
And you are trying to sit on the fence between basic universal responsibility to protect and kneejerk isolationism which is bad and worse.
Secondly, we are talking about foreign policy. The implied idea that we have to treat every group equally, by precedent, law, ethics or whatever, is so ridiculous it's a surprise to see it even lightly implied. Since the invention of diplomacy, it is the norm to have separate, different diplomatic relationship with "every tribe", and we weren't talking about some tribal group in Central Africa that no one without an anthropology degree or something won't even recognize by name, so keep it down with the "but do we have to protect absolutely every tribal group" red herrings.
And the west should get involved into anything the west has any interest in getting involved, which is quite likely in this specific case. We know history, no reason to have goldfish memory like isolationists demand, Arabs always were trouble for the west and they don't seem like they are very eager to change in that regard.