I feel like you just learn to get over it and just appreciate that the culture is growing. 

 I’m black but My mom was into anime and my dad was really into sci-fi movies etc. my dad was a ‘loud and proud’ nerd while my mom kind of kept it on the DL because none of her friends were into it. I also noticed that the circle of friends my parents had were vastly different too. I felt like a wired black nerd outcast even in nerd-safe spaces like conventions. As a black girl that didn’t exactly “look” nerdy, I was still treated by nerds/geeks like the same people OP is saying “bastardizing” nerd culture. 

And now I see it too in black culture. DBZ and mortal kombat references in rap music etc. now it’s turning mainstream by the same people that would call you “white” if you were black liking things like that or just straight up weird. 

As nerds/geeks, I think we still need to remember to be better than the people that made us feel like outcasts. That would be even more uncool