I’m not sure why someone would pick the 1914 ban as being uniquely not racially influenced. That seems arbitrary and could mostly only be backed up by not reading about it.
The main difference between the 1914 ban and previous actions was the degree of added emphasis put on caricatures of Chinese people.
The main difference between the 1914 ban and previous actions was the degree of added emphasis put on caricatures of Chinese people.
https://www.economist.com/special-report/2018/08/14/how-did-...
https://content.time.com/time/subscriber/article/0,33009,962...
https://web.archive.org/web/20080705050104/http://www.hoover...
https://www.nytimes.com/1914/02/08/archives/negro-cocaine-fi...
https://archive.org/details/cu31924032583225