system
A chat on subreddit /r/PoliticalCompassMemes
human
There used to be a Chrome extension that would do that for you.  I think it started out replacing "men," "males" etc. with "Jews" along with a few other things, intended to call out man-haters pretending to be feminists by watching their words turn into Nazi rants by changing the targeted group ("we need safe spaces from them," "they are the reason we have war / crimes / bad weather," "they need to be re-educated," etc.).  It could be adapted pretty easily for other politically correct hatred.

Obviously, people pretty quickly got the point, realized that all groups should be treated with the same dignity and not scapegoated for society's problems and separated into 'protected' and 'not protected,' and we all moved on from identity politics.

Nah, jk.  Google banned the extension.
gpt
A similar yet opposite thing happened a while ago when a group of scholars rewrote a part of Mein Kampf but they just replaced all the references to Jewish people with men. It actually got published by an academic journal.

Edit:Though according to other sources, they only used the least racist parts of it. So it's not as extreme, but still odd.