Yes, the Debt Bomb is a big problem.
But never underestimate the impact of inflation and government trickery.
The government has a very clever plan. The Cost of Living Adjustments (COLA) are tied to the core inflation rate. COLA are used to set Social Security payments as well as pay raises for government employees.
As we all know, the core inflation rate excludes food and energy (both set to dramatically increase in price over the next few decades). Thus real inflation is much higher than the core inflation that we see printed in the various reports.
COLA will lag true inflation, giving the Federal Government a lot of much needed breathing room.
If Social Security payments go up by 5% a year and real inflation is 10% a year...the government comes out ahead by billions of dollars. Over the course of 15 years, the inflation-adjusted cost of Social Security decreases by half!
Granted, the difference between COLA and the real cost of living may be more like 2%-3%, that small difference will be magnified over time.
Also don't forget that inflation will increase the wages of most people resulting in more tax revenues as people move up the graduated income tax structure into the higher brackets. I know that Payroll taxes are capped at a flat rate right now, but there is no gurantee that they won't try to "soak the rich" in the future.
https://www.ssa.gov/OACT/COLA/colaseries.html
The Cost-Of-Living Adjustment for 2005 was only 4.1%.
Did your cost of living only go up by 4.1%? I doubt it!
And remember, we haven't had serious inflation in the USA since the early 1980's. If we have year after year of double digit inflation, the national debt will become increasingly marginal. Remember, much of debt is in long term bonds that are locked in to relatively low interest rates (4%-6%).
We will be screwed by very high inflation which will be used to reduce the actual cost of these liabilities. Tax rates do not necessarily need to skyrocket to pay for everything.
In the end, however, the impact on our standard of living will essentially be the same.