You're saying virtually the same thing as I am, just with a bit different emphasis, and (IMO) ignoring the root cause.

"Hamas was manipulated by Iran into their criminal attack on civilians in order to blow up the war pact between Israel and the Saudis." - This is speculation on your part. Hamas has not said this, and Iran has denied it. Not that I trust Hamas or Iran, but your statement is speculation, not fact. We should not be basing actions on speculation.

"Shia Iran could not allow the creation of an alliance between Sunni Saudi Arabia and allies" - Speculation again.

"Netanyahu and trump bear huge responsibility for provoking this Hamas action, Bibi for relentless actions to take over Jerusalem and the West Bank, trump for brainlessly supporting him and backing the war pact." - This is your opinion. I agree with you 100%, but more for that FACT that Netanyahu supported Hamas, pushed Hamas, and allowed Qatar to openly finance Hamas to the tune of about $1 billion (in sum).

I also agree that Israel is making a huge mistake, just as we did. I fear that we are underestimating the level of blowback that will come from this. To the point that I believe Israel as a country is at risk.