Do you give this same lecture to everyone who's in line to vote on election day?
He pretty much hits the nail on the head as far as describing modern-day political and social movements. It's about doing the bare minimum to make oneself feel better and to be able to brand oneself as an activist.
It seems like all the real-deal movements and protests died out or were neutralized by the late '70s.
On the contrary, voting is one of those things that has an actual measure-able outcome. It's extremely reliable in its quantitative effects.