there have been many jewish communities in germany, not one. and only a few could plausibly stem from immigration in the antique.
Slavic-to-be-Germanized settlers
this is a paradox. german settlers came in and we were then germanized.
generally your whole argument shows how unfitting the whole idea to construct the idea of germany based on the populations in the late antique (stichwort Völkerwanderung) is. jews have been living in germany as long as everybody else. since 1871.
there have been many jewish communities in germany, not one. and only a few could plausibly stem from immigration in the antique.
this is a paradox. german settlers came in and we were then germanized.
generally your whole argument shows how unfitting the whole idea to construct the idea of germany based on the populations in the late antique (stichwort Völkerwanderung) is. jews have been living in germany as long as everybody else. since 1871.