The problem with fixing this change is it requires changing the Constitution again. The metro centers are not going to give up the power they have to tax the productive portions of the population. Eventually productive states will pull away from the Federal government and the Feds will not have the power to stop the disintegration. You can see the start of this already with states passing legislation nullifying federal law.
A real parallel exists between what we are seeing now in the USA and the Roman Empire. A good read is The Fall of the Roman Empire: A New History of Rome and the Barbarians; by Peter Heather
Basically Rome was low on money and manpower and couldn’t react to hostile forces taking over large parts of Europe. Every geographical area low was lost revenues so they couldn’t recover. The Eastern Empire couldn’t or wouldn’t help.