The British attacked Washington DC for all of the following reasons, except "<span>a. to get revenge on the US for attacking the British at Waterloo," since this was a completely different war. </span><span />
Imperialists seeked possession of colonies that had extractive economies because they wanted to gain the advantage of the global resources.
Go back to North America. Give the colonists some representation in Parliament and a little more ‘freedom’ to rule and re-write laws and economic policies (taxes). This would have appeased some of the revolutionary leaders and most of the common people. This may have led to a diplomatic, not militaristic, resolution to the grievances of the colonies that were eventually written in the Dec. of Indep.