Troop deaths would NOT be that high. Yes there will be fatalities as in every war. But it is better than the alternative. Economies will heal over time. However, nuclear weapons must not be allowed to get in the hands of suicidal mullahs.
But like I said in my earlier post, the same argument could have been made when the Soviets got the bomb, when China got the bomb, when NK got the bomb, when Pakistan got the bomb.