Reply To: Have You Ever Told Someone He/She is Jewish?

the halcha of someone with a Jewish Father is that they are not jewish. The term lately has been “Zera Yisroel” literally seed of israel.

That is a more complicated issue, not because they are halachic jews, They are not. But you need to tread that issue more delicatly because it can cause issues especially if they show up at a kiruv event or single event and you dont want to embarass someone