I think this is the crux of it all. Meanness for the sake of meanness has been done in many circles, and especially in the comedy circle. It’s really common to hear that millennials respond to “authenticity” and I think a personal brand of comedy (e.g. Aziz, Schumer, et al.) feels more real in that sense. We’re all weird and neurotic and tapping into that appeals to people as people rather than as black or gay or female. Maybe that’s what millennials want to hear: how we’re all crazy and weird people, not how these people are weird and those people are crazy.