I actually do believe that you believe what you say in your stated conclusion. I just find the "all roads lead to Rome" approach of "nothing shitty happening in the ME happens without bad guy Israel and their butt buddy the US" lazy, overbroad, and thus incorrect. Which is frustrating, because Israeli shittiness and US bullshittery unquestionably ARE material factors in much ME shit, but when everything comes back to those being THE "but-for" cause, it necessarily absolves all the other players of responsibility, no matter how much you say that's not what you're doing. "Sure, Hamas and Assad and the Iranian regime are bad, but, but-for Israeli shittiness, they wouldn't be an issue" absolves the other players. Being a factor vs. being the but-for cause are two different things, and the distinction matters.
I am not unsympathetic to you, the things you have stated concerns about, etc. - again, you can read my posting history. I'm just telling you that a one-note message of "sure, X is bad, but but-for Israel, we wouldn't have X" is a lazy message that necessarily dismisses any complexity and absolves all other parties of blame or agency. And that's frustrating as shit, especially from someone who arguably does not believe that.