Another trial by social media. He did something legal that he now regrets. Get over it.
Its not something I would do personally. Most people I know who have shot an elephant feel huge regret afterwards. And I know a few professional hunters in Africa including one, who shot his first and only one twenty odd years ago, cried after he did it, and has never wanted to do it again. He thought he'd really get a thrill, but experienced the complete opposite.
I get the idea of hunting for eating, but not the thrill of trophy shooting.
I took part in a government conservation cull (of buck) in Africa when I was 18. Put me off for life. There was no finesse or skill. Find a her, drive up in a land-cruiser, pick a target, shoot, load onto the back of a 40ton truck. Repeat for 3 days. Bloodbath