In spite of the Spanish Inquisition and unlike the the German responses to the Jews among them, the Hispanics come from a culture where Jews have been involved for a long time. Crypto-Jews and erstwhile Spanish speaking Roman Catholics with customs that "resemble" Judaism tell of a tie that links the Jewish people with the Hispanic world. I have heard that a book detailing the Jewish origins of the Hispanic elites in Argentina was pulled off the shelves of the bookstores after threats that it would reveal aspects that some people didn't want the world to know. Then too, in Mexico the descendents of Marranos in Monterey, Mexico returned to Judaism and formed a congregation of Sephardic Jews, people who never really left the fold. Yeah, with some Hispanics you never know if there is a Marrano lurking in their family tree.
from the article: U.S. Jews and Latinos form unlikely bond over immigration policy