That's the thing about robotics and automation is they are only good for a particular product. Once the technology changes or improves, you need a different robot, different process, etc. A company could have devised a brilliant way to build a fluorescent lamp fifteen years ago with minimal labor, and that may have been able to beat the market for 6 months. Unfortunately, when LEDs came along, a lot of the capital equipment was largely worthless. Automation requires large amounts of capital investment. With technology changing as quickly as it has the past twenty years, companies will take long looks at the high cost of automating certain processes as they have to consider how long that product will be in demand in the market place. The idea that 80% of the workforce is going to go away is pretty far fetched.