Hipster
"Hipsters", as they are so-called, are usually (though not exclusively), white people from middle-class backgrounds who move into urban areas, "pioneering" gentrification. (Yes, that's right. If you look up gentrification, the term can aptly be applied to the hipsters who paved the way for the yuppies; in both cases the original residents and businesses are threatened, and of course, one thing leads to the other).

Secondly, "hipsters" tend to be very insular. Generally speaking, they only wish to associate with other hipsters, which means much of their art work and ideas appear as though it all came from a single source (or a single collection of sources). And they are pack animals who tend to follow the schemas, heuristics, and trajectory of their pack. For people that espouse independent thinking, this is a fallacy.

There are a near infinite number of ideas, possibilities for cultural interchange, and perspectives that can lead to vast and innumerous creative outputs.

Generally, this diversity is not well represented by the hipster demographic. And lets be honest, it needs to be emphasized, many hipsters are white people, and white people have a long history of asserting a sense of entitlement and self-importance over others.
“Intelligent thought is not dead in New York. It has simply moved to Brooklyn.”

- Oh, right, you're a hipster.