Well that's where we differ. I've never really been a fan of cultural imperialism, and never have the people that have it forced on them, but comparing female circumcision to bullfighting or any other sport related is a bit odd because of the moral relativity of the two acts. I'd say that, if anything, female circumcision is a much deeper moral, ethical, and social issue than bull fighting and obviously needs to be worked out, but the issue still remains that we're not talking about a human rights issue in this thread.
I'd like to keep human rights out of this discussion and focus on bullfighting. I don't even care that it's tradition. Tradition isn't the problem. The problem is that you don't live in the countries that it's illegal in because you have no say in their public matters and the people that do have a say in the politics of those countries most likely are not opposed to bullfighting. The only way that you could do anything about it is by taking over the country, and that seems a bit extreme in the case of bullfighting. In any case, are our own problems so trite that we need to figure out how to fix what we see as "problems" in other countries? Our government seems to think so about many things...
Arguments based off of personal morals are also fallacious, so don't think that I'm gonna let you off on that one.