No difference, it's just banal wordplay at this point to sound 'sensitive.' 'Colored,' and 'Negro' were widely acceptable to use by people at some point, with 'Colored' sometimes still being used by older black people.
It's acronym 'POC' feels atrocious to read, and even more to say. 'POC' makes me think instead of pox, which is a disease that has negative, even lethal connotations. Cow pox, chicken pox, small pox.
And I absolutely hate 'BIPOC.' It especially as it feels too much to me like pompous and greedy black SJWs putting themselves first and (B) grafting to themselves for extra oppression points the still ongoing erasure, issues, suffering and needs of American Indians and the real sympathy and aide still owed towards them (I) with every other disparate group merely being a distant afterthought and a convenient prop by these types to be used as numbers fodder to mine additional sympathy points (POC.)
'BIPOC' makes me want to A-log so bad, and plant my boot so far up these pompous SJWs' asses, that they'll be shitting leather for a week. That's how mad it makes me.
Edited some words and sentences.