That being said, you're quite right that the economy is much worse here than it was in 2008, both in absolute and in relative terms to our competitors. We are the second worst in terms of unemployment in the G7 right now. That was not the case back then.
It is possible for inflation and high unemployment to coexist. In fact, we had something called “stagflation” in the seventies and eighties. It's incredible that we have core inflation almost at target, even with exceptionally high unemployment, which suggests that you cannot necessarily expect that inflation is going to stay low until unemployment comes down.
What makes you so sure that we will not experience the same kind of bout of stagflation that happened back in the late seventies and early eighties, when governments were pursuing the exact same policies as now, which are big deficits financed by printing at central banks?