It is odd that you write "The right solution is not to cast aside monetary policy, but to find ways to strengthen its effectiveness.." There is zero evidence that monetary policy (which has come primarily to mean interest rate tweaks) has any useful effects on the economy beyond chance. Not even when rates were not near zero. No evidence whatsoever, and no coherent underlying theory why it would.

The only levers to the economy that have any useful effect are fiscal. The adult conversation to have is how to use them well. The childish answer is "fiscal is too hard" while clinging to attempts at silly shortcuts ("monetary policy"). It is dogma. It doesn't work. Grow up and discuss fiscal policy, the only reality-based, adult approach to the economy there is.

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For related discussion see 1000 Castaways: Fundamentals of Economics

https://www.amazon.com/dp/0648390616