You are most likely right; there is no way this level of spending can be kept up. (I knew this back in the 90s, and it was perhaps my first conscious realization regarding government/politics.)
Your realization puts you ahead of the GOP Elite, RINOs, all Democrats, the Liberal Agenda Media, and virtually all of the World’s most popular Economists.
The end of Keynesian Economic practice will end badly, World-wide, and especailly badly here in the USA.
Thus, it is important to look ahead to what errors were made in the past, plan a better way for the future, and prepare to survive longer than the supporters of Keyensianism.
As I mentioned, I favor a non-violent approach using tedious State Constitutional Conventions that join many States into workable economic regions, and a commonly shared level of personal Liberty.
It will be survival of the fittest, not the safety net crap of the European Feudal System.
Think on these matters, and let us plan with other FReepers for the survival of the best of our once Free Republic.