I just saw a video by christina hoff sommers (youtube recommended it to me, and I didn't know who she was by sight, so i clicked) where she said that "melting pot" is a micro-aggression, so I googled the term and wikipedia said melting pot = white people,
"The melting pot theory of ethnic relations, which sees American identity as centered upon the acculturation or assimilation and the intermarriage of white immigrant groups, has been analyzed by the emerging academic field of whiteness studies. This discipline examines the "social construction of whiteness" and highlights the changing ways in which whiteness has been normative to American national identity from the 17th to the 20th century."
They're using the term "melting pot" incorrectly. It means an actual fucking mixing of all cultures, it does not mean only white people and it doesn't mean all other groups assimilating to one group. <-- period