Before Judaism was a religion, it was a nation. For 13 centuries there was a nation of Israel. Zionism is simply the modern political movement to liberate Jews from the ovens of Europe and centuries of Muslim oppression and reestablish Jewish self-determination on the land that historically gave birth to the Jewish people.
Hypocritically, many people who harbor animus toward Jews and Israel refuse to grant this right to Jews, although they are eager to grant the right of self-determination to Palestinian Arabs...even though there are over 20 Arab countries in existence and even more Muslim countries. One such Muslim country is actually located in historic Palestine and is called Jordan.