It would be good to consider the underlying reasons for this fact (my faith wonderfully
explained in this book).
One can not say he is a genius in some of his works and not others too prone to criticism.
It is a very short engineering and that goes for all his work, no offense to some.
Which earned him the ostracized, is to have made it so readable Plèbe the bowels of the beast (having worked several years in the League of Nations).
And especially his genius, not just literary, can give credibility to his statements.
"Mein Kampf" pose fewer problems from this point of view, hence its greater accessibility to who would get it.
I suspect also the writer of wanting to protect his widow asked him not to publish some pamphlets, including the latter.
Finally, this book is a disturbing news. For times, it is hard to believe that it was written before the Second World War.
A book probably prescient for the third that is emerging with new enemies being proposed (Islam) if well dried corpses of our european nations.
This will, in the end, a great slaughter organized by our longtime Malthusian oligarchy.