As I see it, the need to hurt or be hurt to get aroused often shows that the person is sexually scarred and damaged.
I'm sorry if it seems like I'm picking on you. I am picking out your comments because they reveal a lack of awareness of the broad range of human sexuality, not to mention the judgemental narrow minded attitude about sex.
We, human beings, don't know exactly why some things arouse while other things don't. Trauma may or may not have something to do with sexual fetishes but trauma also impacts many other areas of our lives.
Are people who are afraid of heights reacting to a previous trauma?
Are people who dig bungee jumping reacting to previous trauma?
Maybe to both questions. The point is being afraid or being totally into it are all on the spectrum of normal human experience.
I dig lots of kinky stuff and I also have a history of sexual trauma. But my enjoyment of kinky stuff couldn't get beyond a very tightly held secret until AFTER, I healed from the trauma. Which shoots your theory all to hell. Not only that but there are LOTS of kinky people who have zero history of sexual trauma.
We just are and just aren't.
Are we crazy or are you a prude?
Maybe both, maybe neither.