Pay more.
Manufacturing jobs are damn boring. Having worked at a manufacturer (as the IT guy). Workers on the floor spend 8 hours a day doing the same task all day. It's boring af.
So have been working the same job for decades, but moving up? Not happening. You could be a manager and get a few dollars more an hour.
You can get a factory job easy. Stay clean and show up. You just won't be rolling in money.