Final answer:
The main idea expressed in this excerpt is that Gates wants Black Americans to be able to embrace their racial identity while also being seen as equals and respected as Americans.
Step-by-step explanation:
The main idea expressed in this excerpt is that the author, Gates, wishes for Black Americans to be able to embrace their racial identity while also being seen as equals and respected as Americans. He does not want to Africanize America or bleach his Black identity in an attempt to fit into white American culture. Instead, he wants to create a society where being both Black and American is accepted and celebrated.