<prompt> Translate the following text to EnglishHata hivyo, hata kama tulikuwa na imani katika fixity ya jamii, utambulisho mara mbili ni bila maana isipokuwa sisi pia kudhani kwamba utambulisho wa Marekani ni immutably nyeupe.  <response>: Yet, even if we did believe in the fixity of races, double identity is meaningless unless we also presume that American identity is immutably white. 