I disagree. As I said the larger the group the more work you have to do. I do agree some arguments are too complex to field to a large group. Brexit should never have been thrown to the public. However the abortion argument is fine to throw to democracy, because they can see the effects first hand. And in the same light we know which way a second referendum on Brexit will go because again they have first hand information to learn from. This in itself refutes your argument regarding the feasibility that people will never learn.