>>937384316 (OP)Some basic facts:
Black men have statistically very slightly larger penises than white men.
This is partly due to the fact that black men are more likely to suffer from sickle cell anemia, which can result in abnormally larger penises. (It can also leave you impotent and kill you, so you know).
Interracial porn is taboo, so even more emphasis is put on penis size. But the number of really big black pornstars is still a relatively small pool. They just work a lot, and work together. You don't see the same emphasis on huge white performers like Danny D or Nacho Vidal because it's not such a taboo. They just do "regular" porn.
There is an expectation that all black men are huge, so regular and small black guys get a raw deal.
A lot of pornstars (black and white) either have enlargement surgery or pump already very large penises. These can both cause long term health problems. You can see some large pornstars already can't get properly hard.
Ultimately, porn isn't real life. Cock size really isn't everything. It's fun to enjoy the fantasy and/or the taboo, but don't let it bother you beyond that.