So by your logic, if the Palestinians take over Europe and call it Palestine and have Hamas rule the whole continent, hypothetically speaking, they wouldn't really have done much wrong.
Since we're at it, why not just go back to the middle ages, where stronger states conquer and occupy weaker states and create large empires.
Also going by your logic, if the French hadn't left North Africa or the British hadn't left India, they wouldn't have done anything wrong right?
I call bullshit. It was Palestinian territory under British mandate, it was promised to the Arabs if they helped Britain in the war, as soon as the war ended, the British decided to fuck the Palestinians over and hand it over to some Jews that had just migrated from Europe. Zionists are a bunch of thieves, and like i always say history has taught us that rarely does an occupation last forever.