Hey, as a former lecturer, I’ll give you the benefit of the doubt and see this as research.
How would this sudden mass unemployment affect the world? One angle to look at this from is the point of view of the average person.
If people’s needs are still met, then they’ll be able to live happy and fulfilled lives, with more time for happiness and leisure.
If people’s needs are not met, however, they’ll suffer.
It’s probably worth keeping in mind that history has shown that whenever big advances in technology have taken place (the Industrial Revolution, industrial automation, computers) there are people who always jump to the worst possible conclusion. The reality is always that some people are worse off, but most people are better off.