Robots are not cheaper than third world labor. If they were, apple would be using robots.

You're forgetting that Apple is already moving manufacturing back to the United States with a very large robotic component involved. They are just putting their toes in the water, but the march of time is unending. In 5 more years, the technology will be more advanced, cheaper, and more widely deployed.

The real knife in the heart of human labor comes down to consistent quality and quantity. A robotic seamstress will produce the same results over and over without any variation. A human seamstress will produce varying quality depending on location, wage, and experience. The quantity produced by the factory will depend on the same as well as local conditions like the spread of disease. Robots do not have any of these factors and can be placed down the street instead of on the other side of the world.

Finally, the real change happening in front of us is self driving cars. Domestic labor pools that people can earn a (self described) decent living from are about to shrink drastically as truck drivers, taxi/hired car drivers, limo drivers, and similar are all replaced with robotic drivers. After the drivers are replaced, the demand for cars will predictably drop over the years, the need for insurance agents/human involvement will drop as "accidents" are a thing of the past, and so on and so on. This is coming and there is nothing that will stop it from happening somewhere on this planet even if we try to ban it at a local level to protect jobs.

The point where human labor is no longer needed for the production of (most) goods and services is approaching faster than we thought possible. With improving power storage for devices and home power storage, ever increasing solar cell efficiency for sale in the real world, and our device efficiency improving along with it, we're reaching the point where work as we have known it is simply no longer necessary.

tl;dr Isn't it going to be hell on Earth when you no longer have to work a retail job to afford a place to rent, food to eat, and the basic necessities? ...or more interestingly, when everyone on earth can have the same lifestyle without destroying the earth?