Modern-day hipsters are an example of:

ethnocentricity

counterculture

subculture

high culture

Subculture

Explanation:

Hipsters are a contemporary subculture of young bohemian people, from middle or high class who live in gentrified neighborhoods. This subculture is often associated with Indie music, veganism, peaceful political opinions, and alternative trends, rejecting every mainstream cultural trend. Hipsters are rooted in previous subcultures and its main influences can be traced back to the hippie wave and the beat generation. They are a form of a subculture because they are a group of people that present a distinctive set of behaviors and beliefs that differentiates them from the dominant culture of which they are part.