Why do I ask this strange question?
As interest rates increase, businesses on the margin (zombies) tend to be adversely affected. If interest rates rose enough, marginal businesses would struggle more, affect other businesses and could even trigger a recession.
The US government debt is rising. As interest rates rise, the government has to spend more to service that debt. We have seen US government debt rise briskly in the past year.
We have seen tax cuts which make the US government borrow money more. The effective tax rate for capital income and wage income is around 13% now according to the NIPA accounts. If one looks at the Laffer curve, surely effective tax rates are low enough on the curve that any decrease in tax rates simply leads to less revenue for the government. Then as the US government depends more on debt to continue, does it begin to appear like a "zombie business"?
Is the US government on the margin? How severely affected is the US government budget by the increase in interest rates, since the US government is having to rely more on borrowing than on taxes?
And if the US government's budget is severely affected by increasing interest rates, is its weakness going to adversely affect the broader economy? and How?
The US government will struggle more to provide quality public education, social safety nets, environmental care, infrastructure and other public services.
So to what extent can the US government be considered a "zombie business"?