This is from Chicago so it's not a big surprise they could find someone who thinks like this:
Rabbi Harold Kudan of nearby Temple Am Shalom went on record as challenging aggressive leaflets the gun lobby circulated a month after the shootings that claimed, "If Jews had been armed they could have fought the Nazis."
"If Jews had guns in Nazi Germany, no one would have survived. It would have been an excuse for Nazis to kill with even greater abandon," he told the assemblage, according to the Chicago Tribune.
The Nazis didn't stop killing because they finished the job they set out to do. They were stopped because men with guns, tanks, ships, and planes forcibly stopped them. Had the Jews been able and willing to put up some resistance, particularly in Eastern Europe in response to the police battalions, it would have significantly delayed the implementation of the Final Solution.
With a stated goal of ridding Europe of Jews entirely it seems unlikely the Nazis could have been motivated further. What would have the goal been had they had "even greater abandon"? Kill them twice?