The point that you’re also missing is that Lashome Hakodesh IS part of the Yiddish language, whereas, Lashome Hakodesh, is not part of the English language.
So I’m not saying that Yiddish and Lashon Hakodesh are the same kedusha, but being that Lashone Hakodesh IS part of the Yiddish language and being that Yiddish phrases and expressions (not English phrases and expressions) are rooted in Tanach, Medrish and Talmud; so Yiddish, as has been stated by those who are indeed holy, is on a higher level of kedusha than English.
I have heard the English language referred to by g’dolim as “speaking in Goyish”.