I think people here have stated a variety of reasons. Many go at it from an economics standpoint saying they are anti-AI because they don't think AI will make a profit because it isn't/won't be that smart.
Yet, you are saying something complete opposite. You're saying that AI could become so smart that it makes many people unemployable.
I think your reason is completely different than just about everyone's here. I think it's more honest. I think people here who hate AI for different reasons actually have the same fear inside but they don't want to admit it for some reason.