I literally never occurs to them that they themselves and their loved ones could be the ones "removed" - the proponents of it always think they will be the lucky rulers of utopia with others to serve them. I remember being taught in school as a kid that we would all be dead of starvation, etc long before now due to 'overpopulation' - cartoon drawings of the earth overflowing into space with mounds of people, various bleak futures being preached at the young, captive audiences. It never changes.