Breno Altman, a secular Jew, is a very prominent Brazilian anti-Zionist journalist. He explains that the political doctrine of Zionism enacted a religious reform. The traditional doctrine 'Israel will be rebuilt after the Messiah comes" was replaced by "the Messiah will come after Israel is rebuilt". Some Orthodox Jews still refuse this reform and are anti-Zionist.
Altman also says that equating anti-Zionism with antisemitic racism is analogous to equating anti-Nazism with anti-German racism.
Breno Altman even got a criminal conviction (which would cause prison term) for his anti-Zionist journalism. Last I checked, he was appealing it.
I really like him. He is extremely knowledgeable about history and politics. His family has roots in anti-Zionism and communism. Two great-aunts of him volunteered to take arms and fight the Nazis. One was fatally shot. The other was buried alive. One grandfather was a member of the Brazilian Communist Party (PCB). When he heard about Khrushchev's Secret Speech, he lost his sanity and later took his life.
Breno Altman, besides reporting and analyzing news, makes very interesting lectures on Historical subjects. His lectures on the Russian Revolution and Stalin are very interesting. When asked about Stalin's greatest mistakes, his first reply was "supporting the creation of the State of Israel".
He claims he has no relation to Sam Altman, despite the shared surname and Sam Altman being (I think) also a Jew.