Wow, his observations are well off. I know it's done for comedy... But still.
Doc is not disgraced as he keeps saying and nowhere in the film is that brought up either.
Marty and Doc became friends after Marty sought out Doc to help him with his homework from school. Granted this is not mentioned in the film, but it's been acknowledged as fact by writer Bob Gale decades ago.
"Doc and Marty go back in time."
No they don't. Marty goes back in time, Doc is shot and killed.
"He tries to fuck his mom."
No he doesn't, in fact Marty does his best to stay away from his mom and her advances through the film.
"We should call it Back to the Past, because they go to the past."
No, it's called Back to the Future for a very specific reason. Doc even brings up very specific reason in the film when he name drops the title of the film. The whole plot of the film revolves around sending Marty... wait for it... to the future where he is from after being stuck in 1955. So Doc is trying to send Marty... back to the future.
What else does this guy have cos all of his observations are terrible and easily explained.