Question 125: Ethics of competition

I was reading your article on ethics of tae kwon do and was wondering if you think entering a competition is ethical because we are using our abilities to fight to win with no good cause at the end of it since we are using violence to win trophies not to stop violence. Are we adding violence in the world by fighting in these competitions? Also, you say that it’s unethical to throw the 1st punch so what do we do in a competition?