Romans invaded Germans first, they deserved to be destroyed. And that empire you call one of the greatest ever, was so during its paganism lol. Rome was weak and decaying during its Christian centuries.
Yes, its christcuckoldrys fault Aryans show little resistance to invasion now. They have been taught to turn the other cheek. In Aryan paganism, foreign races are not in any way tolerated in the homeland. They killed all Jews on sight. Unlike you christcucks, who let Jews into Europe, brought all manner of brown mongrels into Europe during the colonialism era. You are the worst, most pathetic religion that has ever existed, and the most self destructive.
Aryans colonized other races for tens of thousands of years and yet never brought a single outsider into their homelands, and any race mixing was Aryan man taking foreigners women as concubines, while any Aryan women were obligated to stick to their own races men.
Christianity is pathetic, and has brought us destruction.