You see no negative effects because your brain grew up on porn just like everyone else you interact with. If everyone is sick then it's going to look normal. To really see the effects of porn you need to ask what could porn affect? Possibly someone's understanding of sexual ethics? Could it push their sexual interests into more and more extreme positions? The generation before has better mental health, less divorce, higher birthrates, etc. Now virtually everything is seen through a sexual lens.

There's a growing problem of women damaging their anuses

https://www.theguardian.com/society/2022/aug/11/rise-in-popu...

Here's an article talking about a teen girl's attempt to imitate porn:

>A 16-year-old girl’s bowel was so badly injured during group anal sex that she needs to use a colostomy bag for the rest of her life.

https://nypost.com/2019/01/16/teen-suffers-life-changing-inj...