Look at what fishermen do, catching fish and letting them go again. By all standards that is torture, and it's called sport!
I'm agreeing the killing of these creatures should be controlled as they are deemed to be some of the highest in intelligence on our planet. But it takes time to change ways of living that were developed over thousands of years. Calling people murderers and wanting them treated as such is unfair when it is an integral part of their lives. things need to change, yes. people need educated, yes. people need arrested, no.