Question

what was one argument made against u.s. imperialism?
it would pit the united states against great britain.
it created competition with mexico and canada.
it ignored social darwinism.
it violated americas anticolonial principles.

Explanation:

Opponents of U.S. imperialism argued that the practice conflicted with the nation's foundational anticolonial ideals, as the U.S. itself had gained independence from colonial rule. The other options are incorrect: U.S. imperialism did not center on conflict with Britain, competition with Mexico/Canada was not a core anti-imperial argument, and social Darwinism was often used to support imperialism, not opposed by ignoring it.

Answer:

It violated America's anticolonial principles.