What term describes a person who advocates for nationalism?

The term that best describes a person who advocates for nationalism is "nationalist." Nationalism is a political ideology that emphasizes the interests, culture, and identity of a particular nation, often advocating for national sovereignty and self-governance. Nationalists typically seek to promote the unity and interests of their nation above those of foreign countries or international organizations.

In contrast, a patriot typically refers to someone who loves their country and supports its interests, but this does not exclusively imply advocacy for nationalism as a political ideology. A globalist advocates for policies that promote international cooperation and often believes in the interdependence of nations, which contrasts sharply with the principles of nationalism. An isolationist, on the other hand, favors non-involvement in international affairs, which runs counter to the active promotion of national identity that a nationalist would embrace. Thus, "nationalist" is the most accurate term for someone who advocates specifically for nationalism.