Placing any judgment aside about an individual person’s skill level, there are tens of thousands of tier 1 customer support jobs that likely can already be entirely automated with ChatGPT.

This is not a statement about those individual people’s skill levels, but simply a reality of the constraints applied to them by their organization (largely following prewritten scripts)

Presumably he thinks that the technology will improve. Also even if it was only better than the stupidest 20% of workers, that's still a massive amount of unemployment.