The only truly unprecedented thing is the white-collar part. Otherwise it happened many times over that entire regions where suddenly out of job and job prospects. Automation and offshoring have equivalent impacts on the affected job market.
If you automate the creation of software, you essentially can automate almost any white-collar job.
If LLMs can handle 99% of software jobs, then they can “crack” robotics software and then we would have LLMs on robots to replace the rest of the workers