German and European descendants have essentially nothing to do with this phenomenon. In fact, white elders were the primary targets of brutal rapes, assaults, murders, and home invasions by the same POC criminal groups before the US had a large Asian population. Such violence on the streets and in schools was the primary cause for white flight to the suburbs are rural areas. It was a series of decisions made from the exact perspective you’re describing. This view is generally not taught in US schools but is extensively documented in primary sources, such as “Left Behind in Rosedale:”
https://www.goodreads.com/book/show/2056992.Left_Behind_In_R...
And “Common Ground,” a book about the result of forced busing imposed on communities at literal gunpoint:
https://en.m.wikipedia.org/wiki/Common_Ground_(Lukas_book)
European descendants remain victims in ~90% of interracial crime between these two groups today. Similar number for Asians, similar lack of media attention paid. Bet you never heard of the gang assault and murder of Ee Lee: