Saying that anti-Zionist is anti-Jewish is akin to saying that anti-Nazi is anti-Christian.
The Nazis were mostly Christian, but most Christians aren’t Nazis.
The Zionists are mostly Jewish, but most Jews aren’t Zionists.
Hamas are mostly Palestinian, but more Palestinians aren’t Hamas.
I have serious issues with Nazis, Zionists and Hamas, and what they represent, to various levels. I have no issues with Christians, Jews, or Palestinians.