Oo if u think the rugrats theory is bad for your child hood look up pokemon comma conspiracy lol...but in rugrats there are things that dissprove the theory...for instance the parents pick up and push the baibies in strollers if they were all made up in angelicas head the parents wouldn't be noticing any of the children ever and if angelica had hit dill when he was younger and given him head trauma I'm shure dill would avoid her more often. And they can pick stuff up and the parents will sometimes tell them to put it back or somthing. It is an interesting theory though :)
None of the babies in "Rugrats" actually exist, but they are all instead figments of Angelica's imagination, as result of her parent's negligence. Chuckie died with his mother, which explains how much of a nervous wreck his father is. Tommy was a stillborn baby, which explains why his father, Stu, was always in the basement making toys for the son he never had. Finally, the DeVilles had an abortion. To compensate for not knowing the sex of the baby, Angelica invented twins in her head, one boy, one girl.