Real revenues relative to the size of the economy can't be increased by lowering tax r

No, you said revenue always went down. Now we're moving the goalposts by coupling government spending to the economy and simultaneously trying to assume that the government has to grow in exact proportion to it. While *also* accepting the premise that everything the government does is structurally sound from a spending POV and not something we can ever change.

No. Not gonna fly.

Revolutions in productivity or other technological advancements happen. When they do the economy grows and revenue grows with it. There's no need to grow government in direct proportion when something like that happens: we've seen that with the internet boom in the late 90s and early 2000s (for those who want to chant 'bbbut dot com boom', you're out to lunch). We may be seeing another one with the boom in AI usage assuming we don't screw it up.

I asked you the marginal rate question to get you to admit that just increasing taxes to infinity is a bad idea, implying that there is a theoretical maximum the economy can take before growth contracts. That's the point.

Go look at capital and income flight from blue states to red states and see what the trend is. People follow incentives, and economic activity follows people. States with better business structures and competitive tax rates are growing faster and more sustainably that states that don't.