I find it shocking that more people haven't commented on the title. I have searched through articles, and while they mention the obvious connection to Hitler, none of them ask about it in detail. WHY would he call it that, and what point is he trying to make? I can't bring myself to read the book, brilliant though it may be, because the title is too horrifying for me to move past.I think it is like satire, it that can have a double meaning, a differentiation from the original. While in one, Hitler "outlines his political ideology and future plans for Germany", the other has Knausgard describing the "banalities and humiliations of his life." It is in fact a mock of Hitler. As for his point, that is the question that you need to answer, since literature is rarely so cut-and-dried as to plainly state its meaning, but provides one via interpretation.
This is the quote regarding Hitler's Mein Kampf from the article that Dramatika links:
Yes. It is very fascinating and interesting but it is a very boring book by a very indignant man. It's only interesting in light of what happened. In itself it's almost worthless. The strange thing and the thing you can't understand is the hatred towards the Jews. It's so extremely intense. Also, his recollection of his upbringing and his father and his mother is as untrue as it can be. I was interested in this as a representation of the self – that's what I was writing about.