Bad experiment: they didn't control for attractiveness, they barely controlled for sex, they sent different groups through different doors with different bouncers, and they sent the big white group in early in the evening when the place was less full, and the other groups quite a bit later when the place would have been crowded. Of course it will be harder to get in when it's nearly full than when it's nearly empty.  Libstream media gonna libstream.  PEGIDA calls this lugenpresse for a reason.