If you can't separate Judaism from Zionism, and condemn the latter, perhaps we don't want you in the party.
It should be noted that the motion doesn't say that Jews cannot live in Palestine (including what is currently Israel), but rather that it cannot be theirs exclusively. It states that Zionism, the belief that there should be a state exclusively for one people, is racism.
Zionists, it's seems, cannot or refuse to see that nuance.
This motion states Jews are welcome in the party, but Zionism is not.