The robots will be the software that will slowly start to replace knowledge workers or anyone who works with a computer.
If you conduct your work on a computer someone is already planning to replace you with software. Think about that for a second.
Incidentally also the knowledge workers are typically the higher income classes in a society. When their jobs start getting cut across the board where will they go?
Releasing workers that used to work with computers in offices with no replacement jobs has only one direction and that is to re-train as a skilled worker such carpenter, plumber etc. (Nothing wrong with those jobs), but all that motion and extra surplus of blue collar workers is going to drive down the wages. Also who will be able to pay these workers a living wage? Bezos and Musk and the few other winners of this game called "capitalism"? In this world the humans will become the "robots" at low cost and will essentially be replaceable and only exist to serve those few with still wealth to go around.
I honestly believe in the future we really need to rethink the whole structure of the society (basic income) or else the economy is going to displace a lot of people to the fringes of the society working 3-jobs and living out of a car. (Or just downright slums/streets). And when that happens to enough people and there's a critical mass of people with "nothing to lose" revolutions will start.
The late Marshall Brain had written a short story "Manna" that is very prescient and outlines a few possible alternative futures for the man kind. Unfortunately personally I'm not very optimistic about a "good" outcome.