go fight city hall
One cannot defeat or prevail over a bureaucratic system or its rules (despite the connotation of the phrase as an encouragement of action). Good luck fighting those parking tickets—you might as well go fight city hall!
go fight city hall
The futility of challenging entrenched politicians or establishment. Although sounding like a call to action, the phrase means that any effort to succeed against bureaucracy is doomed to failure. It was popularized, although not coined, in the book Go Fight City Hall by Ethel Rosenberg, who with her husband Julius was later executed after being convicted of spying for Russia.