And the whole point of the doomsday machine is lost if you keep it a secret. ...
If not for Israel, Iran would have to create a new boogyman, for domestic reasons. They KNOW this, they're just addicted to trolling the US.
It seems to me that when I was a kid, the headlines generally spoke of the "Arab-Israeli" conflict. I didn't hear it framed as Muslim vs. Jew, or Muslim vs. the West, until later. The first kind of conflict is territorial; in theory, such conflicts can be resolved. When reframed as an ideological dispute, it becomes unresolvable; and in a way, this suits hard-liners on both (or all) sides to a T.
I'm just guessing, but I think Iran supports Hamas largely to signal (false) solidarity with the Sunni Arab world. Without Israel, there would likely be an uptick in sectarian violence.
Khamenei and Trump deserve each other. They're both trolls. Israel, however, is not trolling. Poor Trump. How is he going to get his Nobel prize if he has to bomb Iran? For all my visceral disgust with Trump, I kind of like that he is not especially hawkish. I liked GWB on immigration but invading Iraq was ... just about the most boneheaded thing he could have done.