First of all, you don't make predictions, you make guesses. Predictions are based on something besides a complete lack of knowledge. You only have a complete lack of knowledge.
Second, it's the pandemic and our (necessary) response to mitigate the spread of infection that will cause whatever economic damage that ensues.
You have never coherently explained why national debts are a problem, either in good times or in bad.
You never believed that MMT works, even when things are "hunky dory," in the past. Don't change now, just because you think it suits your (ridiculous) argument.
The government is going to create and spend a bunch of money to try and keep the economy afloat. They won't spend enough, as always, because they still don't get it. And when they don't spend nearly enough, you can't blame MMT or Keynesianism or anything else for their failure.
If you still have a problem with MMT, put your money where your mouth is and tear up the checks you get. They're worthless anyway, right? Tear them up, or stop your constant yapping.