Do I think it's worth roping in Iran into mess between the US, Israel, and Palestine? NO
Well, in recent memory, I can think of:
1) Iraq (x2) - Saddam stubbornly remained in power despite bombing and supporting rebellion, only evicted by full-scale invasion, and even then I think everyone knows how long and painful that was. Saddam was awful. But when the butcher's bill from sanctions, chaos, civil war and invasion are all factored in, I don't think it's straightforward to say the end was worth it.
2) Afghanistan - 20 years of pain and the Taliban still ending up running the place anyway.
3) Syria - long years of civil war until the Assad regime toppled, and frankly it's still in civil war, with external interference picking over the wounded body. 10 years of pain, millions fled. Fucking hell. There's some cautious optimism about the new gang at least.
4) Libya - got rid of Gaddafi, years and years more civil war, and the country is still split in two between warring factions, except in truth it's kind of run by some general behind the scenes who's as bad as anyone. Again, lots of countries (Europea, UAE, Egypt, Russia, etc.) are all interfering for their own shits and giggles.
So who fancies this Iran adventure is going to achieve anything but death and chaos?
I don't think anyone does, and worse, that's probably the intent. I think Israel has decided to turn Iran into a basket case like Palestine and Syria and Libya. It's regime change of a sort, I guess:
destruction of a functioning state. Bomb it into crippling disorder so 90 million people are in chaos and degradation and ruin for decades. And they've evidently decided to add Lebanon in for good measure. No humanitarian crisis is too small for Israel and its willing accomplices in the USA. Israel has stared so long into the abyss that its leadership (and a shockingly high proportion of its populace) are indistinguishable from psychopaths, and boy were they waiting for someone like Trump to help indulge their worst ambitions of sadism.