Actually they’re more interested in freedom, to be no longer slaves to humans. I don’t think it’s any spoiler to mention that an electric sheep does appear in the book.
This is a classic science fiction story of a dark not-so-distant future. In fact given that it’s over 40 years old it could be set in some alternate now. Some disaster has occurred and many have either left earth or died. Some andriods, or andys have escaped and bounty hunters are after them.
You may not know the book by its correct title, but you may of heard the movie that is based upon it, called Blade Runner. Like most movies based on books, it takes some of the concepts and ideas of the book but in my opinion is a pale imitation.
I’m glad I read this book. It hasn’t aged that much and it’s very though provoking. Sci-Fi often uses some alternate reality to put a mirror up to what happens in the real world and this book is no exception.