One can ask just the same:
What have the Roman Jehovah's Witnesses did for the Jews in Rome during WW2? Anything worth mentioning or that went on record?
And what is he comparing? Catholics who did nothing to help Jews, whilst Jehovah's Witnesses "risked their lives on behalf of fellow believers..." Apples and oranges. Jehovah's Witnesses did NOTHING to help the Jews either.
Brother Splane, you utter ignorant and hypocrite, consider, for example, Mr. Aristides de Sousa Mendes: "A Portuguese diplomat and devout Catholic, Aristides de Sousa Mendes (1885-1954) was one of the greatest heroes of World War II who disobeyed his superiors' orders to save 30,000 refugees, including over 10,000 Jews, during June 1940 while Consul General of Portugal in Bordeaux, France." So, there - here's an example of a "devout catholic" who saved the lives of 10.000 Jews who weren't even his "fellow believers". Because of his disobedience, the authorities of the Portuguese dictatorship of Oliveira Salazar made sure that he lost his job and diplomatic career, and he died in absolute poverty. Only decades after his death were his humanitarian heroic acts rediscovered and his memory rehabilitated.
Hypocrites!
Eden