I wouldn't call them "Goths" but there are some gorgeous women at those Afro-Punk concerts. Black women into punk I've dated will sometimes wear a goth type out fit, but are usually wearing something different all the time.
I remember in high school I saw a lot of poor white kids who wanted to be identified with something other than poverty so they got into goth, since it all it required was wearing Black and in some cases make-up.. Even then they couldn't completely escape the class division, because there were the rich goths who could afford all sorts of expensive accessories. The goth kids were either real cool...or real racist. There was no middle ground. The racist ones were always getting pissed at the cool ones for hanging out with Black folks.
In college I encountered some Black folks who didn't identify with the other Black kids in high school, but identified with the Metal and Punk. However they had to constantly battle against being rejected by White people when they went to concerts, parties and other events. The creation of Afro-Punk has made it a lot easier for those who identify as Black, but those who don't identify still deal with the same stuff. Oddly this was never really an issue with the Black kids into house, dnb, and techno.