Is there actual evidence of this? As in, actual statistics rather than grandiose claims of AI destroying the human race?
Yes, you might get replaced by a piece of software and you may need to retrain to a different industry, but this has always been true.
https://en.wikipedia.org/wiki/Creative_destruction
> The number of jobs was highly correlated to the size of population so far, but we already see the rise of bullshit jobs
This doesn't make any sense. At some point, someone is handing over money and expects a specific amount of work be done, which he finds to be a good exchange. It's far easier not to hire someone, than to hire them. So if you don't need work done ... you don't hire anyone.
Why would someone pay someone else money to perform "bullshit"? You only have instances of this when it is mandated by regulation, not in a free market.