Dear web person, It's much easier to write than to say why you write.
Fiction is the ultimate freedom.
If you feel inhibited about something, you can simply avoid the issue, or make an outlandish character who can get away with almost anything, your mouthpiece. I write because I love it, I feel compelled, and writing helps to keep me sane. I find killing off my enemies on the page very therapeutic. Goodness knows which part of my subconscious drives me. I suppose part of it is wish fulfilment.