If we had a hands off government, the solution would “magically” appear and many people would find jobs in a nifty new industry. However, we have the restrictive, heavy hand of government holding back innovation, so you are right to be concerned.
Most of these less-skilled workers are not going to move into management. Most of them are not going to become entrepreneurs. Most of them are not going to take unskilled jobs because they cannot compete with imported labor. Most of them will become chronically unemployed. I don't have a solution to the problem.