Oh I thought it was going to be “I surrender!”

For the people that do not get it (like myself for 3 minutes straight) when someone sneezes they make the sound ‟achoo” which sounds like ‟A Jew”.

I thought it was a sauce joke.

Au jus is just "with sauce" in French. Has nothing to do with Jews.

It took me a sec... this is actually pretty brilliant but it should be in r/darkjokes

...but we don't say that ?

au jus means with juice

sauce in french is literally sauce