Because the ???? is not ???? between different types of Jews or non-Jews; the ???? talks about yidden and ovdei kochavim. The ???? (or at least the ???????) would have to tell us that if for one reason or another (either ?????? or even ????? e.g. brothers died from ???? – there is no ???? ????, or if the ???”? is for some reason circumised, this ??? doesn’t apply! It is ???? enough for the ???? to say something.
???? ???? ???? ?????? ???? ????? ????? ????? ????? <????? ??????> {??????} ???? ???? ?????? ???? ????? ????? ????? ????? <????? ??????> {??????} ???? ????? ????? ??? ??? <????? ??????> {?????} ???’ (?????? ?) ?? ?? ????? ????? ??? ??? ????? ???? ?? ????? (????? ? ??) ???? ?????? ???? ??? ????? (????? ? ?) ?? ?????? ???? ?????? ?? ??????? ???? ??????
Nedarim 31B