It was not the US that perpetrated the violence after it toppled Saddam. It was the radical elements within Iraq. They're the ones that bear responsibility.
..so what exactly are we supposed to be telling the Kurds? That the US isn't responsible for the indirect effects of occupations that were started on lies to begin with?
We wouldn't need to tell them, they know. The radical elements in Iraq who actually perpetrated the violence in pursuit of extremism are responsible for the violence.
There is a reason why Kurdistan is one of the most peaceful and developed regions in the Middle East: they act the way you must act to be a prosperous modern people. The violent radicals who squandered the post-Saddam opportunity to build a modern Iraq are to blame for the killing and the chaos.
The relative loss of life due to war and occurrence of war around the world since 1945 is far lower than at any other point in human history. This is directly due to the US acting as the global superpower.
The Pax Americana is a widely recognized phenomenon.
This "Whatabout WW2 deaths" has little to do with killing 180,000 Iraqi civilians over false information. This type of war mongering justification is what GP is talking about with regards to people outside the U.S. not sharing the opinion that it's benign.
>> Most of the complaints about the US focus on comparatively small mistakes
Taking down democracy in Iran. Supporting dictators in Latin America and Africa and assisting them in hunting down democracy activists. Financing terrorism in Angola for two decades. Fabricating an incident in order to attack North Vietnam, killing 3 millions people. Supporting "Asian Hitler" Pol Pot and the Khmer Rouge. Tacitly supporting Pakistan's genocidal attack against Bangladesh. Selling weapons to the terrorist regime of Iran, and then using the money to support terrorists in central America. Fabricating a threat in order to invade Iraq (hundreds of thousands of dead, millions displaced). Supporting terrorist groups in Syria. Waging undeclared wars in (at least) seven countries at the moment.