Beats me but Oppo, Vivo, Xiaomi, etc, etc are very popular worldwide, and they don't sell in the US. The EU is very stringent in technical requirements so that'

Beats me but Oppo, Vivo, Xiaomi, etc, etc are very popular worldwide, and they don't sell in the US. The EU is very stringent in technical requirements so that's not the key factor. Similar story with Chinese EVs. I don't know which exact protectionist measure is used, but it's there all right. If out in the open sea there are 100 sharks and none of them ever enter a 100x100 square, I don't really need to see the barrier to know something <<is>> keeping them out.