Are you this arrogant/dismissive/presumptuous in real life? Really, dude? You don't have a fucking clue who that person is, where they're from, what their lineage/nationality/family background is, OR what the significance is behind the maple leaf for that person. The maple leaf could be purely aesthetic, he could be Norwegian, his family could be from Norway, maybe it has symbolic significance, or maybe he had that kind of tree in his backyard...you have no idea. People from all over the world have all kinds of random ass flora and fauna tattooed on their bodies, do you walk around going, "pfft, there's no lions in the US, what a fucking idiot!"?
So....you just wanted to show off your maple leaf discerning ability? Ok, that's cool, I can dig nerdiness in many forms, but no need whatsoever to condemn it when you have no information whatsoever.