Are you a “Zionist”? Are you an “anti-Zionist”?

See this tweet which largely relies on an older essay titled “Define ‘Zionism’”. Reading from it:

Seems like "anti-Zionism" is broadly defined (see Anti-Zionism ) just as "Zionism" is poorly defined. I'm Jewish and live in Israel and oppose the by-laws discrimination against non-Jews/Jews/whatever. What does that make me?