In order to dull the blow, we started moving all our manufacturing jobs overseas to slowly prepare our population for when these jobs suddenly dissapear.

So instead of suffering all at once, western countries have been tapering off of manufacturing over many years.

Also, what happens to a country like China, who is completely addicted to manufacturing money, when the hammer falls?

Finally, to completely prevent population instability, they introduced the clott shot right before the robotics revolution is scheduled to kick into gear, removing the final leftover elements of the population that are still dependent on these soon to be extinct jobs to survive.