That is really scary AvocadoBathroom. I remember a couple of years ago, a woman writer reacted to an article about strangling by having a huge tantrum, saying she was 'shaking and crying' because this is how she gets off and people must therefore not criticise it as a practice. I honestly couldn't believe the total self-absorbtion that her response indicated but then she had hundreds of supportive comments. Yes, if that's what you want to do sexually, who cares? But it's obvious that sexual violence has been mainstreamed, the same way porn mainstreamed super-high heels and the "Hollywood" wax.
It is really awful that children as young as 13 (and no doubt younger) are aware of this stuff on any level. I think I was about 12 or 13 when I first saw pornography (a friend's dad had a huge stash of magazines). I thought it was gross and disgusting and humiliating, but looking back, it was all quite innocent compared to what porn is like now.