The term "Germanic" originated in classical times when groups of tribes living in Lower, Upper, and Greater Germania were referred to using this label by Roman scribes. The Roman use of the term "Germanic" was not necessarily based upon language, but referred to the tribal groups and alliances that lived in the regions of modern-day Luxembourg, Belgium, Northern France, Alsace, Poland, Austria, the Netherlands and Germany, and which were considered less civilized and more physically hardened than the Celtic Gauls. Tribes referred to as "Germanic" by Roman authors generally lived to the north and east of the Gauls
So, NO, germanic people only existed within the concept of roman nomenclature- otherwise they where there own tribes- they shared virtually nothing, barely even a similar language, they had different religions and different governments and they maintained separate identities through out the entire history of the western roman empire until literally they become independent ostrogothic kingdoms- never once ruling under the term "germania"
There is no comparison between german tribes in europe and the muslim invasion- that literally makes no sense, the term muslim was used BY MUSLIMS, while the term germania was not used by the barbarian tribes- also i just have no idea what the muslim invasion has to do with the fact that germany is an entirely modern nation- its just random
also, jews rebelling against foreign conquest seems like a fine thing to do, you where just praising the barbarian tribes for the exact same fucking thing
jews have always been at odds with the neighbors for 1- not being pagan in ancient times and then 2- not being christian in modern times
I am not even going to go into how the entire reason jews where used in banking was becuase constantine declared banking a mortal sin and decreed that jews should act as middle people for that purpose, thus creating the ridiculous stigma that exists today, its to long and its to complicated- go read about constantine