Did you know it took about 25-30 years for South Korea to no longer look like a disastrous third world nation after the Korean War?
Millions of Korean people died in the process that made the South Korea of today possible. Was it worth it? Should the South Koreans regret their prosperity and freedom today? Should they have avoided the bloodshed and chosen to perpetually live under the Kim regime instead?
Saddam being gone is not a bad thing and the US should not have invaded the country to topple him. The US installed a functioning democracy with a constitution in Iraq, at enormous national cost to the US and to the Iraqi people. In 25 or 30 years, if the Iraqi people are even moderately free, living in a democracy and able to chart their own path as a people through elections, will it have been worth it? What would the alternative have looked like?
