And have the scope picked up by state and local governments (or even a global one)? Or just let corporations make the rules?

I see the government doing at least two things: setting rules and providing services. Do you want fewer rules or fewer services? Or something else?

Yes, state and local should pick up. The closer to the people a government is, the better it is.

I want the fewest rules that create the most fair economy. And I know very few service better in the hands of government. And that includes bridges:

https://en.wikipedia.org/wiki/Millau_Viaduct

In the USA the general scope for federal & state has expanded, with Federal having the most growth since about 16th Amendment. US code & regulations has expanded 1000x , cost per capita is 15000x

I only make the point that there is a broad spectrum of functional scopes for the government, and rather than looking at shifting the scope around, another possibility would be to revert the scope to sustainable levels