The primary historical sources contradict your opinion. Racism was a part of it, certainly. The other part and the reason for much of the racism was excessive violence and crime. Here’s another book from the era which documents this, note the top review:

https://www.amazon.com/school-ten-year-destruction-Franklin-...

>Of course caucasians would be a victim of ~90% of interracial crime, those are the general population demographics in most places that are not urban in the US.

Do you understand that this number includes urban areas?