notpashut-thank you for your reply but I have absolutely NO idea what you are talking about. What churban?? Obviously, I am NOT ‘vehamevin jovin”. I have lived In Eret YIsroel and in Europe and virtually everywhere there were eiruvim, so you will have to excuse me that I have no clue what you are talking about.
I do understand the actual differences in halacha (whether it is a reshus horabim mi-deoraisa,etc..) but you will have to be clearer about what you wrote. If you don’t want to, then, I am sorry to say, I (and others) will have no idea what you are talking about.