In a 50 mile radius around me there are 44 officially sanctioned Pokemon tournaments happening this month. If you look outside your social circle you'll find that a lot of people play the #2 TCG in the world
If you are willing to admit that there are "utility" to these cards, then what makes them different from cryptocurrency projects that do the same? If the game weren't so popular--maybe it is one of the numerous card games we wouldn't quickly be able to name that are all rip-offs of the concept, but didn't have the juicy IP of Pokémon--would you then suddenly consider it a security?