Rich doesn't mean much if you're under international financial sanctions and can't use your assets.

>You'd just get another Iran.

The sanctions have crippled Iran making it a much less powerful and influential version of what it would have been without sanctions. And by the looks of it is now on the verge of collapse. So I guess this kinda reinforces the point that Western sanctions on Israel would be effective?

Yes, like Russia and Iran, the fanatics in charge could continue in their direction for years, but they would be much less potent and the reaction of their population (who largely have dual nationalities and have extensive business and family ties abroad) may end up forcing a change in direction from the state policy of slow genocide and gradual ethnic cleansing of their indigenous population.