я рад за них, ток вопрос, что считать языком, сугугбо политический. это бесполезный умирающий креолоид
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Yiddish is typically referred to as a Creoloid, much like Afrikaans, Michif, and even African American Vernacular English. That is, they share a lot of common traits with Creoles and Creole Genesis. Labeling something a Creole or not is debatable even amongst scholars as many have conflicting views on what makes something a creole.
Jacobs, Neil G. (2005). Yiddish: A Linguistic Introduction. Cambridge University Press. (Scott: PJ 5116.J33 2004);
Prince, Ellen (2001). Yiddish as a contact language. In Norval Smith and Tonjes Veenstra (eds.), Creolization and contact