Answer:
White people in america didn´t see them as humans, so that allowed them to use them as slaves. This view of them being non-human allowed them to use them as tools and sell them like animals.
Some were slaves so they were mad
Answer:
President Theodore Roosevelt's assertive approach to Latin America and the Caribbean has often been characterized as the “Big Stick,” and his policy came to be known as the Roosevelt Corollary to the Monroe Doctrine.
Explanation:
Prior to the conflict between Britain and its North American colonies, the colonies were able to manage majority of its own affairs without Britain's interference. However, when Britain started implementing stricter measures on their colonies' trade and other affairs, the colonies didn't like it. This started the tension between both parties.
Because we were to let immigrants in, of course that would encourage immigration... We are a mixing pot