Autobiographical Fiction

There seems to be something inherently lazy about autobiographical fiction. An autobiography is a book about the author's life. Autobiographical fiction is a story that is based on the author's life but the names are changed. The characters are based on real people. It is possible that the story is interesting, but if it was interesting, what is the point of not just making autobiographical book? It shows little to no originality for a story and its characters to be based on real people. Of all the story ideas I have, 98% of it is not based on anything from my life. Even if I take inspiration for a story, I try my best to deviate from the original source so that it is my own work. Often times if I am taking from something, it is because the original did a piss poor job. If you are going to write fiction, write fiction; if you are going to write something about your life, write an autobiography.