Yes, the Germanic tribes most certainly did eventually impose their culture and law on the Romans. Do you remember who sacked Rome in 410? It was Alaric of the Visigoths, which was a Germanic tribe. The Visigoths definitely imposed their laws, the Visigothic Code, when they could on the territories they colonized. And that was after a couple of hundred years of various Germanic tribes setting up relatively peaceful colonies in the Roman Empire. After they sacked Rome, they wanted to adopt the authority and prestige of the Roman Empire, so they became foederati, left Italy, and colonized southern Gaul. Then they colonized Spain by booting out another Germanic tribe, the Vandals, and imposing the Visigothic Code on the locals there. However, this weakened their position in Gaul, so the Franks came along and booted them out, imposing yet another culture and set of laws and creating the basis for modern France. Then the Arabs came along and defeated the Visigoths in Spain and imposed yet another culture and set of laws. Et cetera, et cetera, et cetera ad infinitum for all of human history. So, remind me again who the bad guys and the good guys are?
Yes, the Germanic tribes most certainly did eventually impose their culture and law on the Romans. Do you remember who sacked Rome in 410? It was Alaric of the Visigoths, which was a Germanic tribe. The Visigoths definitely imposed their laws, the Visigothic Code, when they could on the territories they colonized. And that was after a couple of hundred years of various Germanic tribes setting up relatively peaceful colonies in the Roman Empire. After they sacked Rome, they wanted to adopt the authority and prestige of the Roman Empire, so they became foederati, left Italy, and colonized southern Gaul. Then they colonized Spain by booting out another Germanic tribe, the Vandals, and imposing the Visigothic Code on the locals there. However, this weakened their position in Gaul, so the Franks came along and booted them out, imposing yet another culture and set of laws and creating the basis for modern France. Then the Arabs came along and defeated the Visigoths in Spain and imposed yet another culture and set of laws. Et cetera, et cetera, et cetera ad infinitum for all of human history. So, remind me again who the bad guys and the good guys are?