There's no amount of skill/efficiency/productivity a human worker can reach that will make employers give up on the dream of one day replacing them with software. The AI companies looking to profit from renting out the collected works and creativity of humanity certainly wouldn't shut down if the GDP tripled either.
People should still take time to learn how to use computers though. As long as they're going to use computers they can save themselves a lot of trouble and anxiety by investing some time in learning about them a little. Same with many other things people use and depend on.