Some things I believe because of multiple good sources:
1. A high up IDF leader wanted Hamas to win so that he could deal with Gaza militarily rather than diplomatically. That was in a Wikileaks cable. I don't see that as a damning indictment beause he was an IDF leader and would of course prefer his own tools. But cynics see it as a desire to kill all the Palestinians.
2. Israel was dead-set against a Palestinian state well before 2005. By 2005 they unilaterally pulled out of Gaza in order to freeze the peace process. Dov Weissglass said "When you freeze that process, you prevent the establishment of a Palestinian state." You can look that up. The word "formaldhyde" is part of it so easier to search on.
3. Israel funded Hamas. That is rather damning, but again it was a strategy to scuttle the formation of a Palestinian state. Cynics can say it was so they would have an excuse to kill all the Palestinians. https://www.timesofisrael.com/for-years-netanyahu-propped-up-hamas-now-its-blown-up
BTW, the 21% of Israelis who are Arabs were accidents. Israel thought they removed all the non-Jewish Arabs in 1948. But because Jewishness isn't a race but rather a set of lineages among multiple races, some of which are Arab, you can't just look at someone to know if they are Jewish or not. And so many Arabs just claimed that they were Jews so that their land wouldn't be taken from them. They kept this fact hidden for decades, and as they slowly tested the waters it was apparent that Israel was okay with them being there as they had integrated into their society well. A very few of them married in, but those allowances are rare. Now they have come out of the closet and claim to be Palestinian-Israelis.
Now I don't understand your point "Given that 20% of the citizens of Israel are Palestinian arabs, I think you might want to reconsider that assertion." my assertion being "Israel is far more an existential threat to Palestine than Palestine is to Israel." I have reconsidered my statement and I stand by it. Perhaps I should clarify that I am talking about the possible future existence of a legal entity called the State of Palestine. Israel threatens that possibility far more than Palestine (a non-state, but that has representation) threatens the existence of the legal entity called the State of Israel.
I'm again lost by your next statements the two paragraphs starting with "Who is in exile?" The part of my statement you quoted was regarding the undisputed (except maybe by you) fact that there are Palestinians in exile on land called Gaza and the West Bank, who were removed from their homes, those homes being on land outside of Gaza/WestBank of which they are not allowed to go to, some of whom still keep the keys to the front door in hopes that one day they can go home, who are NOT Israeli citizens, who are in fact stateless, and who Israel is dealing with illegally according to international laws. Now, given that extended statement, what was your point?
In the paragraph where you say "In fact, mostly untrue", you don't make a statement that invalidates the veracity of my statement. I agree with your statement though, except that I recognize that in at least one of those wars the question of who started it remains disputed.
As to Hamas misjudging, I entirely agree. Their actions make little strategic sense. I can only assume they are trying to enrage the neighboring Arabs as I stated previously. The UN has recognized the right of Palestinians to fight for their freedom by force if necessary, and as this is their land that was taken from them illegally without recompense, and they are kept in a blockaded region without statehood against international laws, I agree that they have this right. That is because I am a libertarian. I believe in all people's right to liberty and to use violence against an authoritarian agressor that controls many aspects of their lives and denies them their liberty. Yet to my point, it is utterly dumb of them to assert that right because they cannot possibly achieve anything. They are too weak against even Israel alone, and especially against Israel and the USA combined. I urge them to fold.
I still don't understand why you would take the side of the agressor that did this to the Palestinians, with your defense being only that Palestinians really really hate Israel and lash out in violence from time to time, some of it being unjustifiably immoral. Of course they do, they are human beings with human emotions and they hate the people who turned their lives into shit. I take the side of justice. I believe in freedom, of liberty, of equality of all people, equal rights under the law. I agree justice must be had against Hamas' crimes too. But justice must be had against IDF solider's actions, against settlers stealing houses and killing the small children who try to fight back, for bombing indiscriminately and claiming everything is a Hamas stronghold (when the evidence is more and more clear that they are bombing rather indiscriminately based on the statistics of the dead being similar to the overall statisitcs of Gaza), for apparently intentionally targetting journalists, for not recognizing that the one who kills has the responsibliity to not kill innocents in the process (no FBI agent would blow up a builing because a hostage taker took hostages and then say "well he was using them for human shields, what can I do?" They would wait for a clear shot). Justice for all the violations of international law that Israel repeatedly and continually violates with the help of the US veto power, for refusing to give back the land they stole in the West Bank, for stealing more and more of it (do you believe in property rights?). Clearly Israel just wants to eliminate these people who are in it's way and take the entire land that they believe that Jehovah promised them thousands of years ago regardless of what kinds of atrocities they must commit to take it back. And that is entirely unjust and inhuman. And so I'm having this discussion with you to try to understand how you can take their side. And it seems to me so far that it is through a web of fictions that Israel has developed and spread to convince Americans to see the situation in a rather perverse way, but from the only angle where Israel looks like a good actor, as long as you don't dig too deeply.