Meanings of whole subculture in English

A whole subculture living off this, merciless folks on the con.

There's a whole subculture that people like you, and even Lobsang, know nothing about.

A whole subculture of geeks surrounds these odd-looking bikes, and devotees brag that no vehicle has gone faster without the aid of electricity or fuel.

They come in swarms, heaps, legions, sometimes whole subcultures.