Slavery was introduced wind a Dutch ship traded African slaves for food in 1619. When White settlers were unable to find cheap labour they turn to the slaves imported from Africa.
The correct answer to this open question is the following.
You forgot to include the video, the link to the video, or the name of the video to look for it. This information is necessary to know what you are talking about.
However, doing some research, we can comment on the following.
The colonists addressing this song towards English King George III. What the colonists are doing is expressing the series of complaints stated in the Declaration of Independence drafted by Thomas Jefferson and other four prominent founding fathers, as was the case of Benjamin Franklin, Roger Sherman, John Adams, and Robert Livingstone.
The Second Continental Congress held in the city of Philadelphia, Pennsylvania in July 1776, asked Jefferson to draft the Declaration, citing all the grievances committed by the English crown. The Declaration was finally adopted on the fourth of July of that year.
