So it appears to me that this puts Israel in a very difficult position.
If they bomb Iran, they stand to lose the friendship and sympathy of these Green Iranians.
Not good.
If they don't bomb Iran's nuclear facilities........
So damned if they do and damn if they don't.
Of course, the bottom line is that survival is more important that “maybe” friends.
IMO Israel should take out the key nuclear facilities for it's national interests sake in as smooth, precise and surgical strikes as possible.
Regime change in Iran can be allowed to develop more smoothly without the pressing nuclear issue. It will come eventually, because the reason for discord is internal and will fester as long as the regime is in power.
It's a question of time. Regime change can be allowed to take time. The nuclear issue not so much.
Ideally the US would take (under a real President) a leading role and promise renewed cooperation with a regime-changed Iran which could very well be an economic powerhouse again and maintain local security like it used to do for decades before 1979.