Lets use the anniversary of the Boston Massacre to remind you that things don't move very fast in politics.
Remember, the Boston Massacre happened in March of 1770, and the first battle of the American Revolution didn't happen until April of 1775, just over five years later. Certainly the resentment that led to it was there for that entire time, but it still took over five years to get to that point and more provocations than can even be counted by both sides in between.