Well, Pope Pius XII (and a whole bunch of Catholic nuns, priests and laity)saved a few - like about 800,000 according to even the socialist Golda Meier, who saw to it that there were planted that many cedar trees as a tribute to him, on Israeli soil.
So - at least according to one preconciliar pope of unquestionable sanctity and propriety - they weren't ALL "bad".
I've worked with Jєωιѕн professionals since the 1970s, mostly attorneys. I can truthfully state that NOT ONCE did I meet one who wasn't honest, or did not earn his keep, nor even acted in an inflammatory manner.
I cannot say that about some, but not all, of the Jєωιѕн professionals on Wall St. and in other parts of the financial jungles in NYC, Washington or New Orleans with whom I did battle, however. There were a couple of real doozies. But then, finance is still the Wild, Wild West and will ever remain so.
Anyway, a Catholic is called by the Church to do whatever he can to help others, including Jєωs just as much as fallen-away Catholics ( the single largest "denomination" in the USA, btw ), to find and to stay on the road to salvation paved by Christ and His Church.
First, by example. And, as in everything else and at every momd ent, there is but one example - Christ Himself. On that score, I have a "perfect record" - I have failed - perfectly! - every time!
But how many Jєωs and fallen-away Catholics would have converted but were chased away by Catholics behaving VERY badly?
I remain convinced that if only ten percent of baptized Catholics managed to do only 10% of what they ought, even if only 10% of the time, that God would be so bowled over that He would re-order the weather so that everyone on earth would have San Diego's weather and put a stop to all volcanic, seismic and incendiary events - just like that!
Second, by prayer and penance. ( Needn't say anything about that! )
So, are there some Jєωs ( like some "catholics", e.g. Martin Luther & Adolf Hitler spring to mind ) who are just plain rotten to the core? Sure. It's true of every race on earth.
Does every Jєω spend an appreciable amount of his time worrying about how best to overturn the Catholic religion? If so, what percentage of Jєωs are like that? Is it a majority? A minority? Is it even a realistic "threat" to the existence of the Church - and compared to what, Islam?
Is it not true that the majority of people of Je Lwish ancestry "identify" with their heritage only along the loosest lines of familial descent and are no more or less interested in anything seriously religious than a majority of non-aligned and non-believing seculars or heretical cult members (e.g. UUs, CoEs or "Christian Scientists")? In fact, because of intermarriage, is it not the case that Jєωιѕн leaders are concerned that, in not too many decades, the race will simply all but disappear altogether?
Anyway, a few thoughts. And, before anyone raises the question, I first read St. John Chrysostum's sermons more than 20 years ago. He's right today as he was then. But one has to read EVERYTHING he wrote: He was no less zealous for the conversion of the Jєωs than any other Saint MUST BE.
That gift, the grace of conversion, for the race Our Lord Himself chose to lead out of Egypt and into which to be born incarnate can still be won.
By example.
By prayer and penance.
Everything else is pretty much just politics.