I am a CNC Machinist. Trust me, automation just means that people with a different skillset are required. Fifty years ago, a machinist could get by without knowing CAD or G-codes. Nowadays, those are mandatory knowledge for the field. Other fields are similar.
So go ahead, get your machine. See how fast it goes when nobody is there to set it up and program it, or it outpaces those upstream of it and sits idle, waiting for material.
What you will see disappear are the unskilled assembly jobs; either get skills or get unemployed. While some places (like my shop) will train you (within reason), not all will. Where I work, if you cannot do simple math in your head (addition, subtraction, and converting fractions to decimal) or have poor reading comprehension or visualization skills (looking at at a program and “seeing” what it will do) , you won’t last long before being shown the door… possibly on a stretcher, since a mistake may send pieces of metal flying. We may teach you a little metallurgy or programming, but we won’t teach you anything you should have known leaving high school.
Other places are similar; a certain level of knowledge beyond that of an eighth-grade dropout is required to get on the payroll. As we automate, fewer entry-level positions are needed, but there is a shortage of skilled people to fill the positions that are opening up.
@JLeslie Manufacturing still hires, just not the same sort of people as they used to.