Anon.

It’s not “just something” pro-censorship fans spread to make people look bad.

It’s yet another element of pro-censorship fandom culture that’s tied to its conservative authoritarian nature.

It’s racism.

It’s xenophobia and racism.

👉 “The Japanese are all perverts” is a racist trope that has been used in the west since we had contact with japan.

It’s a classic “yellow peril” racist trope.

Here’s just a little snippet from the wikipedia article to get you started.

The core of Yellow Peril ideology is the White man’s fear of seduction by the Oriental nonwhite Other; either the sexual voracity of the Dragon Lady and the Lotus Blossom stereotypes, or the sexual voracity of the Seducer.