The Associated Press advises its journalists to not use the term without providing an internal definition, due to its vagueness. They described the "alt-right" label as "currently embraced by some white supremacists and white nationalists" that "may exist primarily as a public-relations device to make its supporters' actual beliefs less clear and more acceptable to a broader audience". - Etymology and scope
Both funkythings and namdnay comment above assert statements to what alt-right is and who belongs to it that the wikipedia article do not. Labeling anti-"political correctness" as alt-right is not supported. Journalist Mike Wendling says that alt-right share the view of anti-"political correctness" with chan culture, but that is as far as the wikipedia article is willing to go.