Pokémon card brawl in Costco parking lot

A video shared on the Pokémon TCG subreddit shows an altercation in a Costco parking lot. One man pushes another, who repeatedly shouts "It's Pokémon!". Then he turns and hits another person. The person filming steps back as several customers enter the frame, carrying boxes of Pokémon cards. The exact cause of the conflict remains unclear, but the exchange appears to be related to these products.