You need to parade yourself before our resident Christian fundamentalists, and they will deign to tell you if you're an authentic Jew or not.
And then they're distinctly resentful that ADL is suspicious of fundamentalists!
I think you mean to say "some" Christian Fundamentalists. Not all by any means have the attitude you describe.
I'm still waiting on an explication of the "false Jews" bit. Please let us know what you're talking about.
Thanks,
Alter Kaker