Blood sports are barbaric and should not be practiced. There is no reason why a modern culture should have this kind of sport. There are a lot of other forms of entertainment. People can also watch fake blood sports in movies and on television. There is no need for actuall blood sports.
Blood sports should not be banned from the world, unless its specifically due to people being coerced into it. Blood sports are undertaken in largely controlled circumstances with regulations in place, and any of these acts undertaken by two adults legally allowed to make the decision to do so should not be banned.
If you ban all sports that involve blood, then any time a soccer play gets a bloody nose, or a football player breaks his arm, then they would be banned too. If the sport being debated is fighting (such as MMA), then still no. People have the right to fight if they want to.
You can't ban boxing and wrestling, just because some crying liberal deuces don't like it.
That's weak. Actually, that's GAY :D
I learned to defend myself by boxing with the older kids in my street. In the beginning, I just got beat up a lot, but today, I fear nothing!