The author is surprisingly confused about how the national debt works. Who, exactly, does the author think the debt is owed to? Directly and indirectly the people, that's who.

This is blindingly obvious when he mentions social security obligations. Most people both pay into the social security system and they receive money out of it -- just at different times of their lives.

In other words, there isn't really a net debt at the societal level (you can quibble about foreign effects, but the relevant numbers there look very different). It is primarily a system of (re-)distribution.

The fact that the author doesn't seem to understand this fairly basic fact makes the entire argument suspect.