Time will tell if that "Theory" is correct or not. The problem I have with monetizing debt is the "benefit" you claim is eventually going to trigger a new crisis. All the democrat nitwits are looking at taxing traders to solve the problems and THAT is what has me concerned. If the forecasted deficit spending holds true we're screwed eventually. How much debt can the government take on? 2x GDP? 3x GDP? Another problem is servicing the debt. Debt service is already the fourth largest line item for federal spending; god help us if rate go back up.MMT is the theory that government deficits are our benefits. Good luck with it.
https://www.crfb.org/papers/updating-us-budget-outlook

I HATE useful idiots of either political crime family.