Why were the colonist so angry of the taxes being levied against them

They were unfair and excessive. The stamp act in 1765 was the first direct tax ever levied by Parliament on all the colonies. All newspapers, almanacs, pamphlets, and on unofficial documents were all required to have stamps. The Townshend act in 1767 placed a tax on a number of essential goods including paper, glass, and tea. Angered at the tax increases, colonists organized a boycott of British goods. The tea act of 1773-In June 1772, in what became known as the Gaspée Affair, a British warship that had been vigorously enforcing unpopular trade regulations was burned by American patriots. Soon afterwards, Governor Thomas Hutchinson of Massachusetts reported that he and the royal judges would be paid directly from London, thus bypassing the colonial legislature. 

Freedom of religion, freedom of speech, being protected by our military and first responders on a daily basis and many many more. 

An informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.