What is misleading about the title of the novel, The Autobiography of an Ex Colored Man?​

The Autobiography of an Ex-Colored Man (1912/1927) by James Weldon Johnson is the fictional account of a young biracial man, referred to only as the "Ex-Colored Man," living in post-Reconstruction era America in the late nineteenth and early twentieth centuries. He lives through a variety of experiences, including witnessing a lynching, that convince him to "pass" as white to secure his safety and advancement, but he feels as if he has given up his dream of "glorifying" the black race by composing ragtime music.

Look at the passages where the author describes the isolation and insanity that dr frankenstein has