In Revelation, John refers to people who "say they are Jews but are not."
That refers to Jews who reject Jesus. From John's perspective, "true Jews" are those who understand and obey Scripture (i.e., believe in Jesus).
In that sense, all who believe in Jesus are Jews. And those who do not believe in Jesus are not Jews.
I don’t think religious Jews are guided by Revelations. They have their own Scripture.
Ridiculouss, offensive and unnecessarily provocative.
And Gentiles are grafted into a Jewish Olive Tree. Paul tells them not to boast over the cut off branches.