Final answer:
The argument that does NOT support imperialism is that the United States should respect other people's right to liberty. Option 3
Step-by-step explanation:
The argument that does NOT support imperialism among the provided options is: 'the United States should respect other people's right to liberty'. This argument is in contrast with the principles of imperialistic endeavors, which often involved controlling and influencing other nations or territories, sometimes against the will of those regions' inhabitants.
Imperialism was supported for several reasons. Some people viewed imperialism as a means to boost political influence and strengthen military power, while economically, it was seen as a way to increase trade opportunities and acquire resources. Social reasons included the belief in American exceptionalism – the idea that America had a duty to spread its ideals of liberty and democracy.
The historical debates on whether the U.S. should involve itself in global affairs to pursue national interests or protect human rights, continue to reflect the complex legacy of its imperialist past. The struggle to balance democratic ideals with imperial ambitions remains a significant thread in discussions of American foreign policy. Option 3