That's like saying government price caps does not make it easier for people to buy goods. While true, price controls absolutely do have actual affects on economy. Typically supply is reduced from equilibrium and the economy is damaged; in paying low prices people have to wait on long lines. Except for cronies who have political capital to get all the goods they want at a low price. 'Nominal price' is different to 'real price'
The same goes for interest rates. A cap on interest rates does not make it easier for the poor to buy homes and cars; in paying low interest rates people have to pay for much higher prices for homes.
By giving up control of nominal interest rate, it would return to equilibrium and reduce capital inequality.
