Yes, it does seem Catholicism was created to persecute the Jews. European nations that are Catholic strongholds have a history of hating the Jews. These includes Germany, France, and Italy (Vatican). But other Christian nations like Greece, Holland, Great Britain, and United States fought off the Nazis. Just the Catholics seem to follow strange spirits that lead them into Crusades and Inquisitions...and Holocaust. Not all Catholics are like Hitler though.
Because of persecution, most Jews do not witness to others about their awesome God, their history, the Scriptures, or share the Passover. They tend to keep all these things to themselves. But they were not supposed to. God had mandated them to be a blessing unto all nations. So God came himself in the form of man, a Jewish man, to give the Jews courage. Jesus demonstrated the awesome power of God and even died and rose again. Here is the Jews' awesome God once more showing Himself to them! Will the Jews carry forth the news of the risen Savior-Jesus Christ? Some have, like the Early Christians and Apostles. But unfortunately, many Jews have fallen mute again.
Nevertheless, we have documents and letters written by people throughout the ages. You can find many of these documents compiled together in the Bible. Besides witnessing the power of God in the here and now, we can also know God and follow his guidance. For example, we can read in the book of Acts about the Early Church and the power manifested by the Holy Spirit. It's good to know that non-Jews were welcomed into the fellowship of believers. It's also good to know that these believers did not celebrate pagan festivals like Christmas (a sun-god holiday) or Easter (a pagan fertility holiday). They did however celebrate the Passover. Jesus taught the disciples to remember him through the keeping of this tradition. He is our Passover Lamb, the perfect sacrifice and the Messiah who is to come for both Jews and Gentiles.
I have learned from the Jewish nation and pray for the peace of Jerusalem. I am from Taiwan.