Econ 101 says "Incentives matter." In this case, if we remove the incentives to pursue careers in fields capable of being automatized (through automation), we will see a rise in demand for and pursuit of careers not easily changed.
For instance, you might see less traditional blue collar workers and more "robot maintenance" workers responsible for performing diagnostics and repair on malfunctioning automatons. You would also see an increase in the number of software engineers writing robot control software, not only out of demand, but also as a fail safe to keep humans in the loop.
The economy wouldn't collapse, it would shift and adjust.
For instance, you might see less traditional blue collar workers and more "robot maintenance" workers responsible for performing diagnostics and repair on malfunctioning automatons. You would also see an increase in the number of software engineers writing robot control software, not only out of demand, but also as a fail safe to keep humans in the loop.
The economy wouldn't collapse, it would shift and adjust.