@noblegiraffe
There's much that's reasonable in your post. Your comparison with Pakistan is certainly thought provoking.
However, with respect, I think you're reading some things into my chronology that aren't there and that I didn't mean. This may be because my "tone" was inappropriately brusque or informal, out of a combination of trying to summarise so much into a short precis and not treating monumental factors like the Holocaust with the gravitas they deserve, in which case I apologise.
As a PP describes Jews had been expelled from almost everywhere at one time or another. You're suggesting that they should try to make their home somewhere that they had been expelled from previously, and could be expelled from again. Or worse.
Hitler hated the Jews. He came up with the Final Solution to the Jewish Question, which was the industrial extermination of all Jews. They were rounded up from what you would like to consider their 'homelands', put on trains to extermination camps and murdered in their millions. That was the Final Solution to the fact that Jews were not wanted, and not seen as human.
And you wanted the camp survivors to go back to the countries they had been rounded up in for extermination? That those were their 'homelands'? That their fleeing to a place of potential safety was 'exacerbating a situation in the Middle East' where they weren't wanted. Where were they wanted?
I never suggested anything about where they should have made their home. I never said anything about "wanting them to go back" anywhere. I never even said that they shouldn't have gone to live in Palestine. I simply said that that is what happened, and that the British couldn't come up with a political solution to it that they were willing to take responsibility for. I was attempting to simply describe the facts of what happened, rather than one or other interpretation of what should have happened, as that's what the OP seemed to want.
As for my views on those issues:
Zionism long predates the Holocaust, and the idea of partition predates it too, so I don't think we can really use the Holocaust as justification for it. If you think it was justified then you must have a reason why it was justified before WW2, when it was first mooted. It probably wouldn't have come up as the answer to what to do with the Holocaust survivors if the impulse and political direction towards it was not already established.
I certainly get that it's easy to look back now and imagine a different path for Palestine that doesn't involve the creation of Israel, but that it was a very different proposition when dealing with the recent, unprecedented horror of the Holocaust. I wouldn't have wanted to be the one to tell the concentration camp survivors "Oh my God that was terrible, but the solution isn't to take some of someone else's country and make it yours". I understand why the international community didn't feel able to do that.
At the same time, there's something profoundly racist about the fact that western countries' solution to the problem was not to sort it out within their own domain, but to impose it upon some powerless brown people instead.
The fact that jews were systematically and horribly exterminated by the Nazis doesn't mean that jews were unable to live safely in any non-jewish-majority country in the west, as many now do.
And Hitler, as Ken Livingstone famously and factually pointed out to his cost, was an enthusiastic Zionist.