“ Christian churches could have more credibility if they would go back to burning a few heretics now and then.”
But those “heretics” were non-Catholic Christians or observant Jews in most cases. Should we be killing them?
I’m not suggesting that anyone actually kill anybody. I’m suggesting, like Osama bin Laden said, people see a strong horse and a weak horse, and they pick the strong horse. Christian churches for the most part are so weak they don’t even protest or condemn Muslim terrorism.
If they want credibility in certain circles, they could at least issue empty-gesture fatwas.