There is no such thing as a ‘presumption in favour of publication’. Publishers don’t publish books all the time – and absolutely nobody cries free speech. Proposition have said it themselves, the arguments aren’t persuasive. However, having it published at all would have given the work a degree of credibility it doesn’t deserve, having it published with the authority of the state will redouble that. Many of the neo-Nazis who see it as iconic would, in all probability, never have got as far as actually reading the book – let alone any commentary – but they will see a book written by Hitler from the print of the state of Bavaria.