Actually maybe Nationalism may be a good thing. Around the world we are disliked by allot of people, for a plethora of reasons. If it helps a group of people to rut for someone they don't even know , and eventually become a fan of that individual, which in turn helps the sport as a whole. What is wrong with that?
I started watching Hatten because of my Irish decent. I generally don't rut for someone or against them because of where they are from, I'm American, allot of us think of ourselves as being from many places. Many people rut for the person they think they have something in common with. Some people cheer against someone they don't know, because of the same generic reasons.