Do you realize that Germany did not "start" WWI?
Denying the horrors caused by Germany throughout history is more dangerous than denying the holocaust.
Young black males are far more of a threat to Americans than Germany is.
WHICH 'young black males'? You surely don't mean all the millions of them in Africa, Latin America and everywhere else in the world?
The biggest threat to Americans is all the American racists - of whatever race.