I don’t look at it as doom but just as a period of very rapid change. As the Chinese saying goes, living in interesting times is a blessing and a curse.
I don’t know what happens next, which is both interesting and scary especially when I think about my kids. They could end up living in a collapsing failed state (or worse) or in a post-scarcity technosphere or something I am not imagining.
Resources will always be scarce, and honestly I don't know what people would do or how they would be motivated in a world where they can always have anything they want or need.
True post-scarcity would mean anyone could have their own private plane, spaceship, etc. That couldn’t happen without some kind of speculative singularity scenario where we get Mr. Fusion and benevolent superintelligent AI or something. Star Trek levels of post-scarcity are sci-fi.