If you understood the joke, you would think it was funny. Except that it applies to you, so you may not.<quoted text>
It isn't a matter of getting the joke.
Its the fact that the joke isn't funny.
FYI, Churchill's rapier-like witty repartees were published, so witty and intelligent were they, and that was one of them. I shan't bother wasting another one on the likes of you.