So was this a war for human rights?
First Bush claimed the war was necessary because Iraq had helped AlQuaida. Unfortunately in spite of the Bush administration's best efforts to dig up the slightest shred of evidence...there wasn't any!
Then it was meant to be necessary because the USA had concrete proof Iraq had WMD, such as the obviously forged documents that Iraq tried to get raw materials for nuclear weapons from Niger. Iraq was meant to be an imminent danger to the USA and was illegally keeping WMD. This has also proved to be a lie - and anyway, the US and its allies in the region (eg. Israel) are 'allowed' to have all the WMDs they want.
Now this war has been reinvented as one for human rights. Another lie. The CIA helped Saddam into power, helped him massacre communists and muslims, encouraged him to invade Iran, sold him weapons and precursors for chemical weapons, provided him with intelligence and illegal funding, and helped Iraq avoid censure for its wartime atrocities at the UN.
Saddam stopped being useful when he invaded Kuwait for continuing to steal Iraqi oil, so the USA stopped being his buddy.
The illegal invasion of Iraq wasn't for human rights but because having a compliant Iraq helps the USA's strategic interests in the Middle East, helps control of a region with vast oil reserves, makes money for Republican donors like Bechtel and Halliburton, knocks out an enemy of Israel, and scares other less compliant states to behave in line with US interests. Now it's set a precedent that any state which feels a perceived threat from another can launch an invasion without consequences.
The war was nothing to do with human rights and everything to do with money and power....period.