The colonists were experiencing taxation with no representation by the king, the "americans" went to america to separate themselves from the english and were not getting what they set out to do. i hope this helps!
It’s was good for the United States
Encourages; encourages; increases
Moral diplomacy was a major tool for the United States to pursue its economic interests abroad.
In the end, moral diplomacy increased the U.S.'s direct military action in many countries and also greatly impacted the economy by manipulating situations in countries that were not democratic or those that held what Wilson viewed as morally corrupt values.
It is a metaphor, meaning you are spectuacular. (from usa at least)