How does the destruction of books lead to more happiness and equality?According to Beatty

Eliminating books also eliminates the controversy that
books can generate. Beatty argues that there are too many minorities - minorities based
on religion, ethnicity, political beliefs, etc. If a book offends any one of these
minorities, a great controversy will be raised around it, with the minority demanding
that the offensive comment be erased. In that way books create conflict. Without books,
such arguments between different groups of society would be eliminated. Also, books can
cause unhappy emotions. For example, one of Mildred's friends cried when she heard
Montag reciting a melancholy poem. Beatty argues that such sadness is pointless, that
it's stupid to get depressed for no reason like that. Finally, books generate
controversy because they contradict themselves. Books contain contradictory arguments,
generating more debate and conflict between the people who read them. Thus, Beatty
argues, the world is better off without books.