If you're alt-right you admire people like Richard Spencer and all those national socialist friends. Liking Ben Shapiro or Sargon of Akkad does not make you alt-right.
What Richard Spencer's done is he's expanded the definition of the alt-right to include the Pepe memesters in order to feel good about himself. The alt-right is strictly a white identitarian politics group. If you are not interested in white identitarian politics and believe that everyone is equal and identity politics, IN GENERAL, is horse stuff, then you are not part of the alt-right.