RTGI and hybrid-RT solutions like Lumen already automate a lot of intensive lighting work. That's why so many publishers push to use UE5 even when their developers have proprietary engines.
I don't think this will erase artists from the process entirely, just like these technologies didn't, but like with every industry it will likely mean less hiring of entry-level people.
I suspect unemployment will be around 20% by 2030, but much, much higher for those early in their career. And it will affect pretty much every industry. That's a recipe for a social revolution and will be THE political problem to solve. It's probably a good thing it would be so widespread though because that means the problem can't be thrown under the rug.
The big wildcard is embodied intelligence/robotics. I hope robotics isn't solved before then.
