It isn't FUD when it is true. Bitcoin 30 will allow child pornography to be hosted on the bitcoin network
with no way to prevent it. That is a fact. Images and videos of child porn will be as easy and simple
to upload as any monkey jpeg. Worse, once on the network it will be there forever with no way to take it down.
This is just FUD.
Bitcoin network also allows for anyone to write fake news and or hate speech in OP_RETURN messages. This is not a reason for the criminal justice to go against thousands/millions of people who run a node. This makes zero sense.
Maybe blockexplorer which display that material could be somehow harmed, but they can just hide sensitive information in their services front-end (which is not a big deal anyway)
Kind sir, don't you know that companies that run the internet infrastructure regularly get criminally indicated for the hate speech that others post online?

The FUD is so stupid that is quite boring, they need to find something new and more interesting.
The difference is that you are much more likely to get prosecuted or at least deplatformed for hosting something illegal like malware or csam than a leaked cable.
It is not just law enforcement involved here - it's also platforms' terms of service.
There is no legal precedent for this yet, but what happens if some litigious person in the mold of Craig Wright tries to sue users he/she doesn't like with this pretense?
Nothing really. You are trying to apply laws of the old system towards something so radically different from the systems that the laws are designed for. Nobody can prevent anyone from storing anything malicious in Bitcoin. How well did it work out for preventing the storage of such data on the internet, something which is much less decentralized? Nodes don't decide what to store, neither do miners decide what to mine (so far, in most cases). At best they could force miners to try to censor these types of transactions in the future but it doesn't do anything regarding historical data. In any case, if necessary technological solutions will be deployed to tackle the stupidity of the legal systems.