Does Faber think the firemen are the only problem? Will making them look like traitors make everything okay in Fahrenheit 451?
Faber does not believe that making the firemen look bad will solve all the problems of society -- especially not right away. He says that fixing society will be a very long-term process.
He points out that back when people had books, they were hardly infallible. People made lots and lots of mistakes even when books were plentiful. Faber says that books might help fix things, but it will be very much in the long run.
Later on, he will describe three things that he thinks people will need in order to actually fix society -- it is not just books.