I don't disagree that the community of software engineering will diminish. What was once a skilled trade is now an unskilled trade.
But I think the intellectual activity will just migrate somewhere else, once all the dust has settled.
People who are intrinsically motivated will continue to be intrinsically motivated and new communities will pop up around new domains.
Coding only came into being 70 years ago. It's not some fundamental human institution.
We're all just going to have to adapt. The wheel turns.