1) Thing is that the latter description is the most accurate description of pre-Enlightenment Christianity one can find. Its legacy is one of violence and death, and the law of fire and sword overcame by far the Law of Forgiving and Loving One's Enemies. Who needs love if one can simply Crusade one's way to Jerusalem?

2) That point was to illustrate that Christ said that Satan would never, at any point, overcome His Church. And this in turn means when the pious Christians of yesteryear were putting ghettoes to the torch and expelling the Jews that they were in fact doing the will of God to the Jews. In which case one then is obliged to ask "What did the Jews do to God?".