Who do you think those 500k children were that Madeleine Albright claimed were "worth it" (Killing)?
first, the "war" was "justified" based on fabrications and lies, like most US conflicts since the War of 1812, so I don't condone any of the actions and results.
that said, if it's war and civilians always suffer most, especially when military forces hide behind civilians, in hospitals, in schools, in residential neighborhoods, etc., like Ukraine, Hamas, Hezbollah, etc. WW2 Allies bombed entire cities full of civilians in Germany and Japan for max civilian casualties...even Eisenhower is on record saying the atomic bombs were unnecessary because Japan was ready to surrender, and was negotiating with the allies for a way to save face in surrender when the bombs were dropped.
The US has been using terrorist actions for centuries, since 17176 the US has been at war 229 years out of 246 years of existence. It's only now when other countries use terrorism that it's a problem for our ruling parasites. Two wrongs don't make a right.
The Iran we're dealing with today was created in the 1950s when the US and UK overthrew a democratically elected government because that Iranian government wanted more control of their natural resources and a great share of the profits, which the US and UK would not accept. After the overthrow of this democratic Iranian government the US and UK installed the Shah, who used terror and violence against his own people to stay in power and keep the US and UK profits from oil flowing.
Many countries that hate the US, UK and France have historic reasons for that hatred; it didn't magically appear overnight and without reason or cause.