I understand you. It underscores the old "can he play on NA ice" question that every european prospect is subject too. players grow up playing the same sport in a different style with emphasis on different parts of the game. The NHL is in North America so it's up to Euro players to adapt. Removing fighting altogether would make it a little more like "home".
I would agree that people who's main or sole draw to the NHL is fighting are few, but the number of people who may be ardent, ticket buying fans who will turn more casual/occasional if it's banned could be larger than you think. Say they feel it's worth buying tickets because they love the hits, the fights, the breakaways, the snipes...but they love it just a little less if there is zero chance of one of those happening. Yeah, i'll just stay home and watch it on tv for free. it's not the reason not to buy tickets, but it's the little bit that pushes you over the edge. I used to get this, this, this and this for this much money. Parking has gone up, tickets have gone up, beer is twice as much, and this will no longer happen. You see what I'm saying? I'm sure some people left as the game got more clutch and grab and slowed down, too, though they probably didn't give up allegiance to their favorite team or stop following hockey. It's a consideration the league has to make.