Retraining to what exactly? The middle class is being hollowed out globally - so reduced demand for the service economy. If we get effective humanoid robots (seems inevitable) and reliable AI (powered by armies of low payed workers filling in the gaps / taking over whenever the model fails), I'm not sure how much of an economy we could have for 'retraining' into. There are only so many onlyfans subscriptions / patronages an billionaire needs.
UBI effectively means welfare, with all the attendant social control (break the law lose your UBI, with law as ever expanding set of nuisances, speech limitations etc), material conditions (nowhere UBI has been implemented is it equivalent to a living wage) and self esteem issues. It's not any kind of solution.
> If we get effective humanoid robots
That's still an if and also a when; could be 2 decades from now or more till this reliably replaces a nurse.
> Retraining to what exactly?
I wish I had a good solution for all of us and you raise good points , even if you retrain to become say a therapist or a personal trainer the economy could become too broken and fragmented for you to be able to making a living. Governments that can will have to step in.
At a certain point people will break, and these sociopathic C-suites will be the first ones on the chopping block. Of course, that's why the biggest degenerates like Zucc are all off building doomsday bunkers, but I don't see a reality in which people put up with these types of conditions for long.
That said, it'll certainly get much, much worse before it starts getting better. I guess the best we can hope for is that the kids find a way out of the hell these psychos paved for us all.
Health care, elder care, child care are all chronically short of willing, able bodies.
Most people want to do anything but these three things - society is in many a ways a competition for who gets to avoid them. AI is a way of inexorably boxing people back into actually doing them.