Have the stupid wars we're fighting in Afghanistan, Iraq, Somalia, Libya, Niger, Syria, Yemen, etc. somehow escaped your notice? How can a human with access to internet be so ill-informed?
Not OP, but
* US military action anywhere
* CIA kidnapping and torture of US and non-US nationals
* US sponsored regimes and regime changes around the world
That's a decent start.
Also, I read recently the CIA and other covert ops led to assassinations on members of the Black Panthers and even Malcom X and maybe Martin Luther King.
I would add US sponsorship of opioid addiction, police violence, lax firearm laws.