That Bava Basra gemora raises a lot if questions. One would be – what kind of T’Ch are deserving such protection in terms of learning and behavior.
Maybe we can use Ravina’s approach when he tried to force his poor neighbor Runia to pay up for the fence: he sent a worker into Runia’s field to prentend to pick up dates, and when Runia started shouting at him, Ravina said – so, you do need protection?! So, if we have T’Ch who showed that they do not need physical protection or financial support from amei haaretz, then they should be left alone. As in Bava Batra, when T’Ch refused to pay up a Roman tax (which was more like a one time gezera rather than dina d’malchuta, if this matters) and merchants threatens to leave the city, T’Ch saud – ok, leave and this worked out. So, current T’Ch should be ready to live near the border and refuse protection from Tzahal.