Why did Alexander Hamilton choose to fight on the side of the colonists?

Answer 1

Because we believed the people needed liberty from Britain, the were unfairly taxing the colonists, and were taking away their unalienable rights.

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New answer:

Unalienable rights are rights not granted and therefore cannot be taken away:

Hamilton did not choose to fight on the side of the colonists. Here are some excerpts from my book The Never Realized Republic: Political Economy and Republican Virtue. (Check out a different answer here: http://wiki.answers.com/What_did_the_founding_fathers_take_from_England_while_forming_a_new_government.

...When Hamilton arrived in America in 1772 he had learned of the colonies' controversy first-hand by enlightened "Presbyterian Whig's." "Hamilton would become the first advocate of the Whigs "paranoid mistrust of power"2 The colonists' controversy was a century-old struggle and not a reaction to sudden and contemporary events.3 Not being from those generations, connected by lineage or controversy, Hamilton stepped onto the American stage to witness the effects of a century of controversy, and a perceived fear of arbitrary and often oppressive authority.

This was not unlike his fear of authority, or the natural and civil forces he witnessed as a boy on Nevis, in the British West Indies. From Nevis to Francis Barber, and Kings College, Hamilton responded to his fears. The hurricanes on Nevis, the anarchy of revolution, and the Federalist Papers show fear, not faith. Herein is the difference between Roman virtue, subjugating out of fear of losing liberty, and classical, Christian virtue, and faith in the desire to do good.