True, Britain was the caretaker, not the owner, of Palestine. Palestine was already defined by international borders. Palestinian nationality and citizenship were already determined by international law.
Britain had no authority to change that.
and by your view Lebanon, Israel, Jordan, Iraq and palestine should be Syrian instead of separate states, or authority in the case of the PA? Or perhaps the whole middle east, parts of europe and africa should all still be Ottoman?
All the soviet states should still be part of the greater USSR?
British Empire should still exist so the sun never sets?
USA should still be a colony?
Global population should go back to 2 billion?
Maybe you prefer to go back to the heights of the Roman Empire?
They all had establish what they considered borders and since they made the laws, they were to be recognized by the rest of the world, as they knew it.
The stone age maybe before there were borders besides coast, water ways, mountains, canyons or forests? When a tribe or nation, so to speak, consisted of only a family group?
Where to you think your reasoning begins or ends? Do you think before you speak or so bond by rhetoric that you don't think at all about what come out?
You think one massive global community or so many different people and ideas will not implode on itself? Mankind are not robotic clones, we exist in infinite varieties.
What exactly is it you want, beside Israel and jews to not exist? What should be the ideal?