Earlier quoted context omitted.
because BDSM hurts ? (I really don't know, I only guess that's why the OP used BDSM as an example)
But is that a bad thing if it is something one enjoys? I find it saddening that people should be ashamed of their fetishes and whatnot, like it's a taboo. Why couldn't we just express our sexuality openly and the way we want to without social stigma surrounding it? If there's something I think which needs disruption in our Western societies, it is human sexuality. What's holding us back and with what arguments?
If you start playing with children, real rape and animals, I'm going to be the first person to call the police.