Question

what is one argument in opposition to american imperialism?
the united states had sufficient sources of raw materials so there was no need for imperialism.
american principles traditionally opposed colonization.
social darwinism meant that the united states would be superior without imperialism.
the u.s. army was too small to be effective overseas.

Explanation:

American principles traditionally opposed colonization. The United States was founded on the idea of freedom from colonial rule (as seen in the American Revolution against British colonialism). Opponents of American imperialism argued that engaging in imperialistic practices (which involve colonizing or dominating other regions) went against these foundational principles.

Answer:

American principles traditionally opposed colonization.