How language is related to race, social and economic inequality

How is language related to race, social and economic inequality? Think of the concept
"linguistic boundaries" and "inner / outer sphere" (Urciuoli, 1996) and provide an example from the reading.
Attached Readings:
Language.pdf
Urciuoli-Intro..pdf
From_Mock_Spanish_to_Inverted_SpanglishLanguage_Ideologies_and_the_Racialization_of_Mexican_and_Puerto_Rican_Youth_in_th-1