I really don't get the fearmongering around Project 2025. It's just a piece the Heritage Foundation released as a giant wishlist. Trump himself said he didnt support it over on Truth Social. And if congress is still split, there will be total gridlock, so even IF this was the official party platform, nothing would get done.
There is a lot of solid ideas in the document, but there is also a lot of hot dogwater.
As for porn, it is protected under the 1st amendment. There has been several court cases about this. If a law was passed, it would be challenged and likely struck down. Having said the most of the rhetoric in the document really points to the availability of books like Gender Queer being freely available in school libraries. This wasn't explicitly stated in the document, but you can draw conclusions from the context of the rhetoric. But yes one of the authors said they wanted porn banned.
Now, preventing kids from accessing porn is a reasonable ask, but this ask has to come with a measure of privacy. Nobody wants their ID floating around in a PornHub database being tied to the type of porn they watch.
Along the same lines, parents should have a say in what books their child is allowed to consume within reason. I read gender queer out of curiosity after all of the outrage about it. That book should not be free to grab by minors. Perhaps there should be a "restricted section" accessible via permission slip from the parents. That way the books can remain present and accessable to those whose parents say it's okay. It's just an idea, but one that I have yet to see floated.