Are sure that the Jewish dialect of “Brooklynese” is still English, or is it a new dialect of English, similar to how the Jewish dialect of German became Yiddish. Note that most Jews considered Yiddish to be be German until World War II. So why isn’t “Judeo-English” a kosher Jewish language, just like Judeo-German and Judeo-Spanish
Or are you saying Jewish songs have to be in Hebrew, to the exclusion of Yiddish, Ladino, Aramaic, etc.