His long term damage involved leaving financially secure, owning your own stadium having spent almost his whole tenure in the PL. Something a majority of football clubs fans would describe as their golden age.
Not going to get much sympathy here with the last paragraph.
And everyone associated with Brighton will feel sorry for fans having to endure the pain of winning the championship in the two years you weren't in the PL in the last 30 years.
The most confusing thing about that video is that they must have have been the Newcastle fans with the best response and arguments to the protester to be picked. And he must have made the video and thought, yes the protester looks like the idiot in this video