The vast majority abuses it, and I suspect it plays a huge role in dwindling relationships. It is much easier to keep enjoying intimacy with your partner if you're not busy running like a hamster on the hedonistic treadmill of pornography.
Drugs can be therapeutic as well, and profound. The vast majority abuses them like crazy. So many examples. We are addictive as a species.
Days show porn use and fertility rate negatively correlate. Makes sense from first order effects researchers see on ED rates, etc.
> rationalist assume the data is true.
That is an utterly absurd statement. There is nothing rational about blindly believing any particular piece of data. What you are describing is a religious dogma.
If you want to bring a survey result in to argue that it supports causation in a particular direction then do so by citing it and clearly articulating the connection.
Disagree on both. Pornography, like any media, has a multitude of styles and types that can evoke different sets of emotions from the viewer. It's an art form that speaks uniquely to each individual, and I've found it to be a healthy way to explore my own interests as well as to connect with potential partners on shared interests. It's also seen plenty of use by married couples as inspiration or "mental lubricant", promoting intercourse (and raising the chances of procreation) in the process. While it's true that not everybody uses it in such healthy ways, and it's also true that some smut is incredibly toxic (particularly to the uneducated/ill-informed), on the whole it's an inseparable part of the human experience we'd do well to utilize for the art and tool it is instead of repressing it out of some misguided notion of subjective purity.