I have never understood why black people do not like the word negro, it mean black in spanish.
People I know in Biringham went from Negro- pronounced as Alabamans say things- to Nigra trying to do it the then accepted northern way which was met with court actions and righteous puffery and horrified editorials. Then they forced themselves to wrap their mouths around “Knee Grow” only for that to be quickly banned. Then hey went through “Blacks” and “Afro American” which in turn became anathematized. They have pretty much reverted to their original pronunciation