"hold onto peace and perserve it for the world!"

Okay. Grammar lesson!

"People of color" is a noun. So use it as a noun.

"I am speaking about people of color."

People who are of color. People. People is a noun.

It is not, as the Internet likes to use it, an adjective!

"POC characters!" is the color blind racist equivalent of "colored characters!"

Do you want to call me colored? Is that the racism we really want to use? Old 1960s racism? Shall I go to the colored water fountain next? I'm sorry- the POC water fountain?

If you are talking about all non-white people as a group, use "People of Color".

"White people are used to being the default- which is why they get to be White and the rest of us are People of Color. The Other."

If you are talking about a specific group of people, and you KNOW that, then SAY their group and NOT "people of color".

"I am not just a person of color, I am Black. Antiblackness is about Black people, not all people of color. Otherwise, I'd just say racism. Words have meaning!"

Further resource:

sparkledog gifset for anon