I always heard it as "Who don't like kids who don't like kids", as in who wouldn't like a kid that dislikes other kids? (an adult who hates kids would obviously be the speaker, declaring his/her affection for kids that share their disdain for kids). Made the meaning funnier to me since it's sort of paradoxical, but I'm not sure it's how it's supposed to be interpreted.
I always heard it as "Who don't like kids who don't like kids", as in who wouldn't like a kid that dislikes other kids? (an adult who hates kids would obviously be the speaker, declaring his/her affection for kids that share their disdain for kids). Made the meaning funnier to me since it's sort of paradoxical, but I'm not sure it's how it's supposed to be interpreted.