It seems that you are a layman ~ ~ all intelligent devices can be called single chip microcomputer. Unless the integrated circuit is completely abandoned, the vitality of the single chip microcomputer is irreplaceable. As long as you are designing electronics, you must use a single chip microcomputer. Please check how many appliances you have in your home. Which one doesn't have a microcontroller now? As for the employment situation, as long as there are developed industries, everyone is human. Of course, it is not easy for two ordinary knives to gain a foothold. If they have real skills, it is not difficult to make a living.