300 million Americans x $2,000 per month x 12 Months = 7.2 Trillion annual printing of new money. Total M2 Money Supply is currently 10.5 Trillion and the entire US GDP is only 15.6 Trillion. So adding approx 70% to the money supply every year or adding 50% of GDP as new cash to the economy every year will only result in 2% more inflation??? If you believe that, I've got a dot com to sell you...
The proposal was not to give everybody $2000 per month forever. It was to add another lever to the Fed's monetary policy adjustment machine, to be used on an "as-needed" basis.