Why did American opinion change regarding the partitioning of Africa among European powers in the 1800s and 190s?

American opinion regarding the partitioning of Africa among European powers shifted in the late 1800s and early 1900s due to growing awareness of Imperialism's ethical implications and the impact on indigenous populations. Influential writers, activists, and the rise of anti-imperialist sentiment highlighted the injustices and exploitation involved in colonial practices. Additionally, the emergence of a more interconnected global economy and the consequences of colonialism on international relations prompted a reevaluation of America's own expansionist policies. This culminated in a more critical stance toward European imperialism, particularly as the U.S. grAppled with its own identity as an emerging power.