-OpEd- Forty-five years after the 1979 revolution that replaced Iran’s Westernizing monarchy with an Islamic Republic, the country’s revolutionary regime is facing public anger at home, near-total loss of legitimacy and regional turmoil — partly of its own making. For weeks now Iranians have been wondering whether their country will slip into war after the October attack on Israel by Hamas, the militia Iran’s regime has funded and aided. Iranians know things are looking bad every time the price of the U.S. dollar creeps up — as it has steadily over decades — fueling in turn the country’s relen…