Of course, a couple of decades after that, Fraktur was declared too Jewish and thoroughly eradicated, killing among other things the sole remaining independent strain of Latin-script handwriting (other than the dominant one invented as a book-copying aid by the Italian humanists, thus “italic”).
Wasn't it mostly Hitler's personal dislike for it? That and the fact that readers in the greater Reich (the bits outside Germany) wouldn't be familiar with, or able to read, Fraktur