It took a thousand years for European barbarians recovering from an empire (Rome) to evolve civically into nations enough to colonize the world. Most developing nations were colonized by empires recently. Give them another thousand years and see what happens. The only thing I think they need is time and being left alone.

The problem is that back about 1900 we still thought that "natural philosophy" would help us find meaning and purpose in the universe. Then we took the universe apart and failed to find it. Moreover, we're much more capable of destroying ourselves and others, almost to the extent of that being the default.

The 21st century has a quiet moral void gnawing at it.

I don't think there is any regression. There are certainly economic realities that have changed over time but the general distribution of people who have an interest in education or entrepreneurship probably hasn't changed. The 80/20 rule comes to mind here. Most people in the 1800s weren't starting railroads or running factories, they were doing the labour of building the railroad or working in a factory.

If AI does anything I think it will make lower skilled and disinterested people more capable by acting as a 1 on 1 and minute by minute guide. They may not seek this out themselves but I imagine quite a few jobs could be created where a worker is paired with an AI that walks them through the tasks step by step making them capable of operating at a much higher skill level than they would have before. At that point good manual dexterity and an ability to follow instructions would be all you need to perform a job, no training or education required.

I realize this can be a bit dystopic but it could also be eutopic if society is organized in such a way that everyone benefits from the productivity increases.