Answer:
Due to their revolt against the Great Britain.
Step-by-step explanation:
South liken themselves to the colonial revolutionaries of 1776 because the colonies built by Britain were present in the south of United states and in 1776 the people of these american colonies started revolt against the great Britain and the war of American revolution was started. These American colonies declared their independence and becomes the states of America so that's why the south thought themselves the colonial revolutionaries of 1776.