Many people, including hunters, don't like the idea of elephant hunting. But they should not insist others agree with them so long as the activity is legal and does not harm the resource.
Hunting is, by and large, an individual endeavor governed by rules (game laws) that the vast majority of sportsmen adhere to. But like all things in life, within the rules there exists a gray area where actions may be legal, but it is questionable whether or not they are ethical.