> in a world that ties purpose to work is an existential threat on a very practical level.

I don't disagree that we tie purpose to work and severing that tie will have negative societal consequences, but it is far more impactful that we tie the ability to continue to exist to work (for anyone not lucky enough to already be wealthy).

If I suddenly became unemployable tomorrow I'm positive I could find alternate purpose in my life to fill that gap, I already volunteer for various causes and could happily do more of the same to fill in the gaps left by lack of work. What I couldn't do is feed myself, keep myself housed, and get medical care (especially in the US, where this is very directly tied to work).

The really big fuckup we are committing as a society in the US (may or may not apply to each person's country individually) isn't just this looming threat of massive labor displacement due to AI, it is that instead of planning for any sort of soft landing we are continually slashing what few social safety nets already exist. We are creating the conditions for desperation that likely will result in increasing violence as outlined in the linked post.