The main goal of imperialists was to enrich the home countries. They would colonize Africa and use the colonists as cheap labor force, often as slaves, and would produce things that were cheaper and would take all of their resources and sell them or manufacture things from them. This would bring wealth to the colonizer but no wealth to the colony itself.
Slavery was the most significant cause of the controversy
The original two words are opposites (emancipate: make free/imprison: make not free , so we have to look for other opposites. Those are: endorse (support) and oppose.
Answer:
The answer is
ending taxes they had to pay.
