Israel is not making threats to bomb Iran every day. Iran, on the other hand, is launching missiles with “Death to Israel”’painted on the side, and issuing a statement at least a few times each month reiterating its enthusiasm for attacking Israel.
Jimmy Carter’s worst legacy (so many to choose from!) was in forcing the Shah to initiate certain reforms that led to the empowerment of the Ayatollah Khomeini and the ultimate overthrow of the Shah and imposition of a fanatical Muslim theocracy on the Westernized people of Iran.
It's the same story we've gotten used to by now. The long term consequences of messing around in the Mideast are worse than not having gotten involved in the first place. No coup would have meant no Shah and no Mullahs. More of the same is not going to improve the situation; it's the external threat we present which is keeping the Mullahs in power.