Don't bother, this poster is just trolling and moving the goal posts is one method to do so. You could bring up how spirited and competitive the World Baseball Classic was. How it featured teams from all over the world and was watched and understood by fans all over the world.
Or how there are multiple professional leagues on multiple continents. Each with their own followings and eccentricities.
You could also point out that baseball is in fact back in the Olympics. Precisely because it now has an international following.
But none of that matters. Because this poster is in a race to prove how they are more euro-centric than Americans are USA-centric.
