The power structure are the wealthy elite and major corporations. You naively view the government as something separate from business but they are one in the same.
It’s simple to prove. Just ask yourself, “where does the overwhelming majority of campaign finance and lobbying funding come from? It sure as hell isnt minorities or working stiffs or women or the poor.
From a business/oligarch perspective there’s only one flaw with a strong federal government...sometimes democracy works and the voice of the people is heard. Rest assured, in the absence of a strong federal government multi nationals and Oligarchs would steamroll the society. State governments are no match for corporate power as has been demonstrated time and time again.