You have said that Zionism is actually harming Judaism. What is the difference?

Judaism is a monotheist religion. We follow the Ten Commandments and the Torah. Rabbi Hillel (an ancient Jewish saint) summed up the Torah thus: “That which is hateful to you, do not unto another. That is the whole Torah, the rest is just commentary.”
Zionism is a concept of nationalism that arose as a result of the rise of anti-Semitism at the time. Zionists decided that the Jewish people needed their own country and set their sights on Palestine.