“Mass murder is not necessarily genocide.”
True, however, in this instance it was an attempt to wipe out a very large portion of a single ethnicity. The deaths of a of 1 million person population is not a casual coincidence.
Knowledeable, rational people disagree as to whether this was a genocide or not. 60 million people were killed during WWII. The Germans killed over 20 million Soviets. They were not engaged in genocide against the Soviets. Pol Pot killed over a million of his countrymen. Stalin and Mao killed millions. Those weren’t “casual coincidences.”