In reply to nazi typography:
Can we say that their typeface reflected Nazi's official ideology?
Perhaps, but you would have to do so in relation to the concept of Völkisch.
But note that the Blackletter style is not inherently fascist, only in conjunction with its traditional use in Germany. And as I suggested in the linked thread above, because the communists had adopted the modernist sans as their style.
Elsewhere in non-fascist countries, they had their own folksy culture, such as Little England with its Olde Shoppes with “Old English” blackletter.
In the Anglosphere, blackletter was popular for newspaper mastheads, e.g.
