Karp isn't british, and its not like Oswald Mosley is that well known in the UK.
Mosley's speeches are not common knowledge. For example if you reference "rivers of blood" someone who's vaguely knowledgable in British politics will have a basic understanding of the reference.
if you said "Hurray for the black shirts" someone might know you're talking about the daily mail's endorsement of Mosely.
But if you say "britian first speech" you'll get blank looks. Even if you're a politics nerd.
So for someone who is pretty uninterested in british politics, to memorise a speech from oswald mosley, is deeply fucking weird. Now, if that had been some politician like Lloyd George or Disraeli, you know someone who was actually a good orator, still weird, but not much else.
To memorise a speech from a fascist, who married a fascist, organised a fascist party, and was interred for being a fascist, and tell it back to the grandson of that fascist, who you employed mainly because he's the grandson of the fascist, is big fucking tell that he's a bit fascist.
