Do you want culture to be frozen and instant digital communication with anyone else in the world to become a privilege of the few? Because that's where "clean" leads. And all you get is a little bit of temporary safety.

Here's a different vision for the future:

Let information filtering become each individual's own responsibility. We have LLMs now, and they'll get more efficient, so why not use them locally to filter incoming feeds according to each of our own preferences, but remove all of the filtering/moderation for posting info out. Build systems to decentralize and anonymize the Internet so that people can discover anyone and aren't afraid to post anything. Make it so that everyone can get a message out to the world and nobody can be arrested or assassinated for it. This will put an end to most violent conflict because they'd be replaced by online discourse.

Let the Internet be flooded with trash and gold at the same time. Let each individual decide what info is/isn't valuable to them. Let those individuals self-organize. Let ideas compete freely, so that the best ones may prevail.