Yet, calling them "regular" black people is somehow okay?
Yep. Just like calling somebody a 'regular' American. Or a regular white person. Or a regular heathen Chinee.
It has been explained to you what is meant by 'regular', so I won't belabor the point. Your faux 'taking offense' is virtue signaling and looking for offense where there is none. AND on behalf of somebody else. They don't need your ofay ass sticking up for them, nukka. They grown.
Signed, A regular white guy.
Around here, there are a lot of non-regular white people (meth freaks, dope dealers/illegal growers, squatters, crazed bums, criminals of divers sorts, etc). Is it okay for me to prefer regular white people?