It was a red Donald Trump "Make America Great Again" hat.
The setting looks like some sort of college club function with various tables arrayed around a room. A quiet and polite young man is wearing the hat (was he staffing a table?) when he is suddenly set upon by an SJW commando squad, led by a sort of Opposite World Ann Coulter.
The scene ends when a squad member steals the hat directly off the young man's head.
When bullying fails there's always theft.
Sorry, I forgot to mention the whole thing happened At Mount Royal University in Calgary.
I think that's in Canada.