text: "Mass murder of men, women and children---and not one excommunication." What this tells me is you've been reading Jack Chick materials.
  
  Rodney Stark, a Protestant, has a book out by Templeton Press "Bear False Witness: Debunking Centuries of Anti-Catholic History". He debunks this allegation.
  
  By your fruits you will know them, and you’re repeating one of the most insidious anti-Catholic libels.
  
  The book is currently offered on Amazon, and it is well-reviewed.