I often feel like I should justify writing about topics most people consider unpleasant. I should stop trying to talk others into being comfortable. Writing is about truth from the writer who pens it and how the world is according to him/her.
Yes, the universe can be a pleasant place but take a look around sometime, it isn't all sunshine. In the world I live in there is addiction, starvation, war, deception, rape and a whole bunch of other things I don't want to think about. I am so very glad there are things like love, hope, determination, compassion and so on to balance it all out but you cannot deny the existence of the bad.
A writer talks about things that may make them uneasy and often makes others uneasy in the process. They don't sweep the broken shards under the rug to avoid looking at them but sweep them in a pile and examine them.