There won’t be a mass extermination, just terrorist attacks targeting some while the others are bled to death providing for the “special” classes. It is already happening in the US, and one of the reasons whites have a negative birthrate; remember the media trumpeting a few years back that more whites were dying each day than being born?
Look at the areas in the US that are completely devoid of whites; they resemble the countries from which the original inhabitants are descended, with taxpayer aid replacing Red Cross/UN food convoys.
Conservatives still know how to populate the earth. It’s the little baby leftists that can’t handle raising children.