China and Saudi Arabia are pretty dirty, but I don't see the US in that camp lately.
What about the fact that the US has been sponsoring military and paramilitary organisations in central and Southern America for decades to fight against attempts at unionisation or socialisation efforts to help ensure their control over the rare earth metals and oil there? There are death squads that have mowed down entire villages after being informed of talk about unionisation as well as driving away indigenous tribes who happen to live in areas that are inconvenient to the interest of US multinational companies.
Are you also somehow forgetting the war in Afghanistan and Iraq that was perpetuated for decades after the given reason for invasion were dealt with for the transparent motivation to plunder the resources there? More than 200,000 civilians dead (and that's on the optimistic side of projections) as a direct result of actions from the US army.
All of these examples I gave are crimes that the US are currently engaging in and even with that restriction, this is far from a complete list. If I expanded it out to what they have been up to in the last 5 decades, then it would be a lot longer still.
If you don't see the US as dirty, then I don't know what standards you are operating under.
Crimes against humanity? How am I supposed to take you seriously. I'm no fan of Saudi Arabia, but they're a necessary evil. But Israel? I don't know what standards you're operating under...