No matter how they say, “Race does not exist” or some sickening smile with “Racism will end when everybody realizes we all just human,” you are saying that genocide is impossible.
Genocide is not destroying humans. Genocide is destroying a PARTICULAR KIND of human.
Mao Tse Tung is estimated to have starved and murdered about fifty million Chinese. But no one objects to China having his smiling picture as its symbol, because those were Chinese, not Jews, Gypsies or any other IDENTIFIABLE group.
They were just a few million of these “humans.”
So call them on it when they use this “humans” crap, just as you do when they use the “no such thing as race” crap.