Otherwise known as a Keynesian dictatorship

This isn't quite right. There are two ways to inflate away debt. One is to conduct a surprise burst of inflation that ends before much of your debt needs to be rolled over—that is, before markets can demand much higher interest rates, eliminating the benefit of the inflation. The other is to simply force institutions to buy your debt at below-market rates: FT

We can just pretend we are a monarchy and do whatever the current White House Keynesians want to do, hiring the necessary armed police to make it happen.