Black letter is a pretty illegible typeface now, but it started off as a normal typeface that people across Europe used every day for hundreds of years. It stayed as a normal everyday font until recently when more humanist fonts became most popular to use.
Nazi used fraktur as their blackletter typeface for all propaganda throughout the times Hitler was in power. Because of what Hitler stood for and what he did, we don’t use blackletter for propaganda or designs of power in this day and age. Nazis used blackletter as their own custom typeface as s symbol of German identity, because of this they denounced papers printed with any other typeface in Germany.
In 1941 the Regine re-characterized Fraktur as *Judenletter, “*Jewish letters,” and systematically banned it from use in all of Germany. There is a long history that Jewish writers and printers had tainted the letterforms themselves and that it was time for Germany to move on from that font. No printed matter could use fraktur for German audiences or abroad. Blackletter handwriting was banned from being taught in school after Hitler had passed. Any and all evidence that Fraktur was used throughout the war was either banned or discontinued so that Germany could start new with typography.
A font that happens to be used by people who are hated and despised does not necessarily make that font always connected or related to it. Futura was also used in a massive venture to the stars when we had landed on the moon. Futuras current day use is not very common but is still respected to some extent. More fonts were created spinning off from Futura and creating their own blackletter style of typefaces.
Unfortunately still, Futura, when seen is almost always connected to nazism and to a period in time that was quite bad for humanity Futura font while it has represented Nazism and evil tendencies, it also has connoted a great stride in the progress of technology and taking steps into the future. With continued good use of the font in our future endeavors, Futura has an undecided but maybe promising future in typography and typefaces alike.
Sources:
Waldeck, Mila. “Typography and Nationalism: The Past and Modernism under Nazi Rule.” Latest TOC RSS. Intellect, June 1, 2020. https://www.ingentaconnect.com/content/intellect/jvpc/2020/00000006/00000001/art00003.
Lupton, Ellen. “Never Use Futura.” Google Books. Google. Accessed December 9, 2020. https://books.google.ca/books?hl=en.