Dead? I think not. What about the whole NRX Silicon Valley techno-libertarian sub-culture, which came into preeminence in 2008? How about selfie culture? Or STEM culture, or how STEM seems to have become the new 'cool' or celebrity status, especially with the show The Big Bang Theory being so popular? There will always be fads, sub-cultures, movements.
Also add: the Red Pill movement , PUA, MGTOW, manosphere, men's rights as new movements/subcultures