There’s a simple answer.
First Judaism is a religion, not a race, not an ethnicity, and not a nationality. (Yes, that knocks out the Zionist Big Lie, too.)
There are lots of terrible Christians and Muslims in this world, too. But nobody calls Christianity terrible nor do they think less of Christians because of the actions of the terrible Christians.
Second, these “Jews” are Jews-in-name-only. They have nothing to do with Judaism.
The more that Jews distance themselves from heretics, including Zionists, the better it will be for Jews. Period.