I thought the US was doing it on purpose so they used the term melting pot but being Americanized doesn't necessarily mean losing your identity and culture completely.A person should never be ashamed of who they are that includes their ethnicity, sexual orientation, religion, or what not.
I think a lot of the problems lay with proactive attempts to homogenize all unique aspects and traits that people can identify with with each other into one lump sum, and isolate differences that gives each respective group and individuals their identity in ways that can either be used to degrade or compliment people.
It seems like hate groups and even people with good intentions are seemingly going into a singular direction in attempts to homogenize everyone.
Something that I don't think is being realized.
Melting pot - Wikipedia