Answer:
The advice to be given depends on which version of the war you could believe. Going with the views of General William Westmorland the American commander I would have advised President Johnson to continue with America's military commitment. With more than 33,000 American military personnel in Vietnam, the south was about to be defeated and Tet was mounted out of desperation. In other words, the US and her South Vietnamese allies were winning.
Explanation:
put it in your own words though
Taxation without representation, the colonists were taxed by the British without the Colonists own government being consulted. Another reason was the that the British did not allow the Colonists to move into the newly aquired area of the northwest region(Ohio, Kentucky etc.), because the British promised the area to the Native Americans. And may I note the Colonists actually considered themselves to be British.