Dr. Abbott: Well, forgive me if I don't want to be in the John Malkovich version of the Brady Bunch.
In the 1999 movie Being John Malkovich, there is a part with clones of the person filling the room, a restaurant scene, I believe. It is horrifying in quite an unsettling way and the quote is certainly a reference to this.
Preceding dialogue: Rose: You don't even know if Linda's interested.
Dr. Abott: Think about it, Rose. There could be nephews, miniature little Andy Browns underfoot with pale skin and black clothes. (imitates kid's voice) Uncle Harry, can I go to the rap concert with Ephram? We're like, hitchhiking.