It doesn't necessarily, but there are some issues to think about: 1) Interest rates that are low mean that middle-class savings accounts don't grown in size. QE requires low interest rates as I understand it. 2) MMT is linked to QE but guess what, an oligarchic system isn't going to distribute QE capital to middle class and poor people, it's going to go into the pockets of the ruling class. In any case, you really ca…
The median savings account balance is just $5,300[1]. And the thing about savings accounts is that they generally do get spent down periodically - they typically aren't used to continuously squirrel away cash for decades, so you're not compounding interest over the long term. You might save for 5 years and then do a big spend-down to purchase a car, a house, home repair, medical emergency, etc.
So, if the savings interest rate is a paltry 1%, that's just $35. But if it were 5%, it's $265 -- Except now you're paying 1-2 points more on a mortgage, student, and/or car loan. The median household debt is something like $59,000: roughly 10x the amount in savings.
So, you make $230 more in savings interest at the cost of thousands of additional interest payments.
Reducing QE and making debt more expensive seems to benefit a very narrow group of individuals who have the means to store large amounts of cash in safe liquid assets and don't carry significant debts relative to their income. Everyone else is worse off.
[1]https://advisorsmith.com/data/average-savings-account-balanc...