The resolution makes a dangerous conflation—and quite a few Democrats gave their wholehearted support.
“The resolution suggests that all anti-Zionism—it states—is antisemitism. That’s either intellectually disingenuous or just factually wrong,” said New York Representative Jerry Nadler, who voted present. “The authors if they were at all familiar with Jewish history & culture should know about Jewish anti-Zionism that was and is expressly not antisemitic. This resolution ignores the fact that even today, certain Orthodox Hasidic Jewish communities … have held views that are at odds with the modern Zionist conception.”
It's kind of a major self-report when people are straight up incapable of imagining the possibility of a secular democratic state with more than one ethnicity/religion. Like it never even occurred to you as an option or possibility.