And how do Jews understand the reason that God behaves so differently today versus in the time of Joshua? The bible makes everything seem awfully cut and dry, but I suspect that then, as today, it was necessary to discern God’s will, not simply hear with ears and obey. Surely there were great miracles and signs, but God always leaves enough room for doubt that the faithless can explain Him away. No other explanation makes sense when you read how the Israelites crossed the Red Sea and shortly afterwards made a gold cow to worship!
It is the same with the Church in history. She is infallible in preserrving Divine revelation and teaching moral principles, but NOT in how she behaves. In EVERY era of history, she behaves imperfectly. The trick is that by virtue of having those infallible principles staring us in the face all the time, the Church DOES typically behave in a manner slightly BETTER than the culture in which she is immersed. This is true today, when the Catholic Church stands strong in principle against abortion, but does a pretty lousy job in action. It was true the same way with minority civil rights in the 1960’s. It was true in regards to slavery. It was true with the Nazis. And it has always been true of treatment of the Jews.
For all the crimes committed against the Jewish people in history, I have noticed that the culture at large ALWAYS wanted (and often actually DID) commit worse crimes in that same era. This does NOT excuse the members of the church for failure to live by the principles we preach. It IS, however, precisely what catholic teaching would predict to happen. The members of the Church are fallen humans like the rest of us. The presence of the truth in the teaching of the catholic church IMPROVES the behavior of its members compared to the human culture at large, but doesn’t automatically make them impeccable!
What people always do is look back in hindsight and proclaim shock and horror at the misdeeds of catholics in history. This is intellectual dishonesty. Most of those expressing the horror would be guilty of worse crimes if they had grown up IN that culture and era. This isn’t moral relativism, we’ll ALL be judged by objective standards of right and wrong. But it is realism in terms of how to judge the impact of the Church on history. Individuals must all by judged by objective standards. Organizations must be graded on a curve or the perfect becomes the enemy of improvement.