Creation from negative emotions

I have something that I question a lot these days. What do you think about those people who creates from the place of hate, anger, sadness, despair ?

Why would they want to get out of indulging in those emotions if they help them create art, songs, novels or any other creation that they enjoy to put outside in the world ?

I can see that I did create lots of things after my last very painful breakup and I don’t know what to think about that… I would love to get your insight ! Thanks so much