Why were African unhappy with foreign laws?

Answer 1

You may be asking about African-Americans (called "Negroes" back then). The only foreign laws I can think of refer to slavery-- Africans were captured and brought to work in the US (and in several other countries) against their will, with few rights and fewer opportunities. Obviously, slavery was imposed upon them and the Africans who had to endure it were, understandably, not happy about having their freedom taken away.

Then again, you may be asking about colonialism-- many people in Africa found themselves colonized by European countries, which imposed their laws and customs, and often discriminated against the people from the country being colonized. For example, in British colonies, lighter skinned and more "cultured" people (those who imitated the culture of England) received preference, while people who maintained their own country's traditions and language were lower on the hierarchy. So Africans objected to foreign laws because those laws were forced upon them, and they had no say in the matter; they also had to accept the customs of their colonizers, whether they agreed with those customs or not.