Sociolinguistic Artifacts

In this video clip from a recent Saturday Night Live, the skit seems to have been written to specifically mock both Louis C.K's inability to reproduce a foreign accent, while also mocking the foreign accents of early immigrants. It is difficult to understand their motivations for the skit, but it seems to me that their depictions of 20th century immigrants relate to our Standard Language Ideology that immigrant language is difficult to understand and is something to be mocked. It is also an interesting example of linguistic crossing, as Louis C.K's appearance in this skit depends on his ability to imitate a foreign accent which he is unable to do.