I want to focus my response to your first point about how AI could displace many low, and frankly mid, income workers. Rather than seeing this as a strict negative, I'd like to imagine this can have a net positive outcome on society. Namely, it could influence people to strive to be better educated. If people want to make money in this future society, the will have to become better educated to keep up. This comes with a whole host of funding issues, but it could help fight the job loss and improve society as a whole. Second, I think AI could act as an efficiency improver more so than a job replacer. Imagine how AI can help improve the efficiency of skilled an unskilled labor! In the end, I see many scenarios where AI has a positive influence on society as a whole, but only in very specific and guided scenarios.