Actually, already Hitler. The numbers are tight and Hitler did not finished his project. He was stopped by force. His plan was to exterminate Slavic people in the next generation too.
And right know in America, it is squarely fascists and racists who win the numbers and are on the path to add some.
Numbers are nowhere near close. Just Mao is responsible for at least 3 times for what Hitler was responsible for. Under Pol Pot a quarter of the population was erased. Stalin's numbers double that of Hitler.
And right know in America, it is squarely fascists and racists who win the numbers and are on the path to add some.