I have never read any of Rick Warren's books. An Estonian friend, a Baptist pastor, posted the following quote on his Facebook page. I agree with the quote.
Our culture has accepted two huge lies. The first is that if you disagree with someone's lifestyle, you must fear and hate them. The second is that to love someone means you agree with everything they believe or do. Both are nonsense.
You don't have to compromise convictions to be compassionate.
Rick Warren.