Reply To: Chabad? Most non religious Jews are not halachikly Jewish.

I read the brochure inviting all Jewish teens to attend which didn’t mention anything about a Jewish mother. Even if 25% were non Jews is that ok? There are no formal studies about the percentage of secular Jews who are halachikly Jewish. There’s no question in many areas of the US the majority of Jews are not Yehudim. Should we be stopping random people on a public square & putting tefillin on them knowing that many are not Jewish?
I E ven when secular Jews marry each other, many of those they are marrying are actually non Jews who think they are Jewish. Should we be treating all cultural Jews as though they are halachikly Jewish?