Germany is a has-been country that basically just helps Israel commit genocide, but not really much else.
The US didn't exactly ever stop killing millions of people. They just hop country to country, Philippines to Korea to Indonesia to Vietnam to Iraq, a million here and a million there, spreading death and destruction all around the world. Those are just the big ones, if we start including the tens and hundreds of thousands there's Chile, Argentina, Libya, Syria, Afghanistan, Gaza, and on and on.
Remember, we're talking about what country is the biggest threat to the world. It's not China and it's not Russia.