"And thou shalt write them upon the door-posts of thy house, and upon thy gates."
It’s possible to oppose the policies of the government of Israel without being a Jew hater. I’ve personally opposed many Israeli policies and actions and nobody’s ever called me an antisemite. On a personal level, of course there are Jews that I dislike but I don’t hate my people in general, or hate people because they are Jews.
That being said, with the possible exception of the Neturei Karta, a tiny minority of Chassidic Jews who join pro-Palestinian demonstrations because they have a problem with the secular aspects of the Zionist movement (and because they’re insane), I think it's safe to say that any self-professed “Anti-Zionist” is in fact an antisemite.
The notion of the return to Zion is deeply ingrained in traditional Judaism. The Amidah, the silent recitation of 18 blessings that make up the main portion of the three daily prayer services, explicitly mentions Zion and the Jews return to it more than once.
While the intersectional left is working hard at cementing Jews as a group into the “oppressor class”, antisemitism, or Jew-hatred as I prefer, still has a bad odor to it - at least for the time being. Publicly proclaiming yourself to be an antisemite is not as fashionable as donning a keffiyah and calling yourself an anti-Zionist. It also allows for the “you can’t criticize Israel without being smeared as an antisemite” defense.
The photo above is a bit hard to make out, but on the door of the dorm room of a Jewish student at the University of California Santa Barbara, someone has carved “Zionists not welcome →,” with the arrow pointing to the Mezuzah on the doorframe. A Mezuzah is a small case containing a slip of parchment inscribed with verses from the Torah (Deuteronomy 6:4–9 and 11:13–21), wherein God commands Jews to write His words upon their doorposts and gates. Mezuzah is the Hebrew word for doorpost.
While many people refer to the decorative case as a mezuzah, it’s the claf, the parchment, that fulfills the commandment. The case is a matter of hiddur mitzvah, literally “making a commandment beautiful.” While some mezuzah cases might have imagery from Israel, like the Western Wall, many, like the one on the dorm room, are rather simple and elegant, with just the Hebrew letter Shin, which stands for Shadai, one of God’s holy names in the Torah.
There is nothing “Zionist” about the mezuzah case above. It doesn’t even have a Star of David, which, because there is one on the Israeli flag, could arguably be considered a Zionist symbol. Simply put, a mezuzah is the universal sign of a Jewish home.
I’m quite sure that whoever vandalized that dorm room would vociferously deny that they are a Jew hater. After all, it’s Zionists that they said that aren’t welcome, not Jews. Yeah, right.
Go sell those wolf-tickets somewhere else. When you say “Zionists not welcome” and you point an arrow to a Jewish ritual item, a symbol of a Jewish home, you’re a Jew-hater, no different than shouting “Juden raus!”