I think you give too much credit to the US and zionists. They probably convinced Trump that it would be another Venezuela, and because of their hubris they decided to go for it anyway. Remember how at the beginning it was supposed to only last for 2-3 days? Then 1 week, then 2 weeks, then 4 weeks, then until September. They clearly didn't see this far.
I'm very surprised anyone would think Iran would be a Venezuela.
Venezuela's leadership was barely legitimate (with voter fraud / dictactorship 3 years ago) whereas the supreme leader in Iran has had power for 36 years.