Is this in the US? I'd go with the constitutional right to freedom of religion. You could reference the Establishment Clause.
Because the people in the colonies originally came from Europe so the leaders of the countries that wanted the right to the colonies believed since that is their people it’s their colony
Teddy Roosevelt was angry that Colombia refused to allow the construction of a canal across the Isthmus of Panama. Even though Colombia initially refused the construction plan, Roosevelt did not give up. During this time in Panama, there was a group of individuals who were organizing in order to gain their independence from Colombia. Roosevelt was aware of this and used these individuals to help him achieve his goals.
Roosevelt ended up sending military assistance to this group who planned on breaking away from Colombian rule. He sent the USS Nashville for reinforcement purposes. Even though the ship never saw action in Panama, it sent a clear sign to the Colombian government that Roosevelt would not be denied. Ultimately, Roosevelt was able to build the Panama Canal.
Answer:
In the late 18th century Enlightenment ideas spread to Latin America. The success of the American Revolution showed that foreign rule could be thrown off. These two events inspired revolutions in Latin America, which had profound effects on the Spanish, Portuguese, and French colonies in the Americas.
Hope this is useful! :)