Well there's Vietnam, Afghanistan, Syria, Yemen, Libya etc which would tally ~300k civilian deaths alone. Given the blatantly false pretences that America invaded Iraq under, and the sectarian violence that significantly flared post-Saddam, I don't see why you'd not want to involve Iraq in the stats?
Let's not forget Laos and Cambodia, where unexploded munitions dumped by the US decades ago are killing and maiming people even today - https://www.humanium.org/en/unexploded-bombs-still-endanger-...
I accept US responsibility for a great many of the civilian deaths caused in Vietnam. I don't accept US responsibility for Islamists of different varieties blowing up each other's markets and places of worship with weapons provided by Iran and Syria.