Same here.
I have always tried to watch porn whenever I could, from magazines in old days to Video tapes and then streaming. Law of marginal utility has definitely proved itself true.
Now I rarely watch a woman being pounded out of her snot or watching her merciless being treated like a rag doll. It was never my turn on anyways. Watching gaping genitals has become off putting for me. I still watch porn, but I prefer watching softer stuff like close up blow jobs, or lesbians. I also prefer videos with seduction. For some reason I like non-creepy-weird Japanese stuff. I find their women very very cute. I find I come mostly to sight of a girl (or girls0\) licking the cock sexily and her wet mouth with cum on it. Either that or a woman on her back , with her arms above her head, her eyes closed and her breasts moving gently.
I think porn has turned sex into a spectacle. It must be creating an impression in younger generations mind that women love having with 6 inch diameter dildos up there and then displaying the cavernous holes to cameras. We see examples of that in reviews every once in a while. Guys going to see SP's with undue expectations. I remember a friend of mine describing his trip to Thailand. He was relating how girls were taking different objects and performing stunts with their vaginas! How is that a turn on! I guess there is that WOW factor.
One thing I noticed is that I don't necessarily enjoy watching what I actually enjoy in real. For example, I love rimming and being rimmed, also I enjoy toe sucking in real as well but I have absolutely no interest in watching them in porn. Strange!
But one BIG negative impact that porn has had on me is that I am not fantasizing anymore. Before online porn, I fantasized more with all sorts of women. I think I started to realize that a few years ago. So now when masturbating, I use porn to turn myself on and sometimes, I close it and fantasize while I come.
I also find that it is hard to hold phone with my one hand for so long

. Also, having thousands of video clips also means there is way too much to choose from. Sometimes, I find myself spending more time on finding the right kind of clip than actually masturbating.