When Israel Folau was sacked from the Australian Rugby Union following anti-homosexual social media comments, the response was loud but also confused. The story itself had so many elements - sexuality, religion, sport, powerful corporations, which meant the usual political responses were also skewed. Progressives were siding with right wing opinion makers, and vice versa. It also made it almost impossible to hold a position in the centre which was not somehow extreme. Malcolm Knox has explored this complex controversy to try to answer how freedom of expression has become our national faultline.