Ron,
There were lots of logical steps missing in those last few lines of your article, and a few missing observations.

What future demand has the Fed pulled in with its low interest rates? Very little, that's why the US economy is still anemic.

To observe what happens when programs never end we could look to Japan. They don't seem to have rising inflation.

You seem to have a problem with debt, as if it's morally wrong.

If there is a backlog of infrastructure that needs repairing, idle hands to do the work, a lack of confidence in the private sector to employ that labour, then why shouldn't the government hire the labour and repair the infrastructure? Apart from its self imposed laws there is no reason why the government just couldn't spend the money by directly crediting banks' reserves in the Fed system. Observation has shown that over the last few years an increase in the Fed balance sheet does not raise inflation. Government should stop when inflation becomes a problem.

Lack of aggregate demand is the problem, not debt. If debt was the problem then why are US, UK, Japanese etc interest rates at historically low levels? The only high interest rates are in the Eurozone, where the problem is fundamentally that Germany and France do not wish to recapitalise their banks. These banks' loans were to entities that can't pay and so should default. German and French governments are imposing the pain on the borrowers instead of on the regulators and executives of the banks that ran up all the bad loans. That's a political problem, not an economic one.