HE STOLE MY TITLE! I was writing that piece a few weeks ago... Never finished it though. Great minds think alike, I guess.
Actually, there is a book by Canadian D.A. Carson with the same title. I have it in my Logos Bible software library.
Carson also covers the subject of tolerance in his book from the 1990’s, The Gagging of God. This book is about post-modernism, in general, and how post-modernists have shuffled absolute truth out of academia.
Their arguments are self-defeating. According to liberals, there are no absolute truths so we must accept all worldviews which do not hold to absolute truth. Naturally, those worldviews which believe in an absolute truth are to be shunned; i.e., not tolerated.
Such a worldview is self-defeating because they have to promote it as absolutely true.