A better argument would be that the "new" harlem shake isn't dancing, it's just spastic upper body movements.
P.S. If anything I'd say that more people are going to learn about the real harlem shake due to the popularity of the faux harlem shake than if the latter had never existed. http://www.youtube.com/watch?v=O5m6sJCbZEk
If it's the case that that's their argument, then I just don't buy it.
Also, the term "trap music" for that electronic music isn't the original trap music either, see http://www.youtube.com/watch?v=GfPjYdef1lg
However, equating the Harlem Shake meme to blackface performances is ivory tower nonsense that belies a willful ignorance to what Internet memes are. No one is profiting from this and it's not diminishing black culture in any way. If you put it back in context then you don't have a viral video because the stupidity and brevity of the whole thing is what made it viral. Just because it got huge and it annoys you doesn't mean that it's part of the problem of racism. It's just an idiotic meme that people watch when they're slacking off at their dead-end white collar jobs. If you actually care about improving societal racism you need to address more important issues like why aren't more black people getting hired and why don't they have more political power, etc. If you get all riled up and insist that anything black needs to be represented in context and everyone always needs to stop and think about how unfair it is that white people can listen to black music without actually suffering the pain of a racist society that led to the creation of that music all you will do is make people want to stay the fuck away from you because being white in your vicinity is like walking on egg shells. It doesn't matter how morally justified you are if you turn off all empathy and refuse to recognize their fundamental humanity simply because they are "privileged" and therefore need to recognize their role as oppressor at all times.
