I’m guessing it’s a reference to what Hezbollah’s already done

It was unmarked sarcasm, but understood.

Israelita is Israelite. Jews are Israelites.
That community center was founded before the state of Israel existed.

You could have kept googling.

Established as Jevrá Kedushá in 1894, its mission was conceived to promote the well-being and development of Jewish life in Argentina and to secure the continuity and values of the Jewish community.

[…]

Other English-language names for the organization are: Argentine Jewish Mutual Aid Society,[6] Argentine Israelite Mutual Aid Association (or Argentine Israelite Mutual Association),[7][8] Argentine Jewish Mutual Aid Association,[9] and Jewish Mutual Association of Argentina.[10]

From the Wikipedia article.