Many of the afformentioned letters are used as a source in Volker Koop's book "Martin Bormann: Hitler's executioner". One of the passages that got my attention was this :
Gerda [Bormann] now suggested that after the war racially untainted men should be allowed to have two wives by law. [Martin] Bormann noted next to this passage: ‘THE FÜHRER THINKS IN A SIMILAR WAY!’ So many ‘untainted’ men were falling in this war, and so many valuable women remained childless – but these women in particular needed to have children, Gerda opined, to which Bormann noted: ‘Absolutely – for future battles deciding the fate of the nation.’
The thought of polygamy continued to be on Gerda's mind and even put a new complexion on the prophet Muhammed for her. On 2 February she wrote [to Martin Bormann] that polygamy had been an unconditional necessity for the founder of Islam, for how else would Muhammed have been able to obtain sufficient soldiers to spread his faith with fire and sword.”
Martin Bormann: Hitler’s Executioner
(The Bormann Letters, p.47f, letter by Gerda Bormann to Martin Bormann, Obersalzberg, 2 February; 27 January 1944.)
What's your opinion? Hitler supported polygamy now ?