The US has been prosecuting domestic genocide since it's founding. They were forcing hysterectomies by law up to the 1970s. There was a fucking State Eugenics Board in North Carolina and the involuntary sterilization laws in that state weren't repealed until 2003.
The USA has always been a psychotic bloodthirsty genocidal regime and everyone has known for a long time except most Americans, most Canadians, and average Brits. This particular genocide in Palestine is finally waking those people up to the truth.