It's already happening. Listen to the left these days, they actually are advocating the extermination of people who will not submit to socialist dictatorship. And these people have no qualms about labelling a picture of a handicapped person with hateful words such as "I bet her mother wishes she would have had an abortion!" They are also advocating for genocide of white people, and even white people are jumping on that bandwagon.
The devaluing of human life since 1973 has shaped the millennial generation into something ugly.
A victim needs a villain, someone they can make look bad so that they can look good by comparison. Their rationale tells them their lack of success must be the fault of someone more successful than them. Even when they still earn more than the average person, there’s always someone that has more than them. I had a sociology teacher, an admitted socialist, that spent most of his time blaming white conservatives and rich people for all the world’s problems. Did he share any of his own money with the less successful? Of course not. When socialists get rich, they still horde their money like anyone else. They just claim they’re willing to have their taxes raised, while finding every loophole they can to avoid it.