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

Goyim have pretended to be Jews – even in times of Bais Hamikdosh. Remember the goy that boasted that he went to Yerushalayim and ate from the Korbon Pessach. The Tanna told him, try to get the “good part” from the fatty tail – that you won’t succeed. He tried next year and they quickly realized he is a goy (because tail and hind parts are ossur). Yes, goyim have “infiltrated” even the Bais Hamikdosh, there were no guards to check the yichus. They joined families – potential intermarriage! Is it any different today?!