The question is not if they replace 3 million jobs (even if we believe such a number plucked out of nowhere).
The question is does it REMOVE 3 million jobs.
Or, like every automation that ever happened (and AI is just automation, it's not intelligent at all), is it just the case that the jobs become obsolete because they were basically worthless and could be automated out of existence by anything that came along, and then they allow other jobs to do more, or require other jobs to be created, etc. etc. etc.
Because, in history, if you look at it over the years (not days or weeks), the number of JOBS just keeps increasing, and pretty much in line with the number of people that need them. Of course there are blips, but pretty much over the last few hundred years... more jobs, all the time.
It's not even a question of "do jobs just stop being created", historically, it's far more "can ALL jobs keep pace with population expansion". Sometimes they waver a bit in that aspect but pretty much... there are always jobs. Because as the lamplighters get obsoleted, the electricians, street-light technicians, etc. come in to replace them, and then people have 24/7 lighting so now you need more people to secure the factory, or whatever other examples you want to pluck out of the air. Secretaries weren't obsoleted by email. Retail shop worker's job were replaced with online delivery drivers, and so on.
Sure. Not the SAME JOB. Of course. But the fact is that the jobs evolve just like the people, and the number of jobs - and thus the unemployment rate which *roughly* corresponds to the number of jobs (but also health, social security and thousands of other factors) stays... pretty much the same. Countries like Greece have high unemployment not because AI came round and stole all the jobs... because the rest of the world are doing just fine... but one of a thousand other factors. But if you look overall... the unemployment rates aren't changing JUST because of AI, and aren't likely to. Because even if that happens, you now need someone to wrangle the AI, a dozen people to help run it, a dozen people at the electricity company to keep the lights on for it, more people to make and sell and transport and fit the GPUs and so on.
This is yet another evolution, marketed as apocalyptic catastrophe. And I fucking hate AI. But it's just automation. Yeah, someone's worthless job copying Excel figures from one box to another might be obsoleted. But you know what? I bet nVidia, the cloud providers, datacentres, software-pushers, even electrical installers, etc. are hiring like crazy to take up the slack.
Not the SAME job. It will be REPLACED. But there will still be jobs, probably more of them. They won't be REMOVED.