> Not to mention the US, with it's secret laws and national security letters.
Don't even need laws or national security letters. Just keep inviting the CEO's of leading social media platforms to congressional hearings and demand they do more to fight "terrorist propaganda and child pornography", for a more current context "Russian election interference".
Then these platform holders will kickstart a whole content-moderation industry on the other side of the planet, all properly outsourced so nobody could claim they are censoring themselves.
The result is a surface web that has been sanitized for years already, but with barely anybody noticing or caring.
In a system like that the notorious "Vietnamese Napalm girl" gets deleted because it's childporn. A painting depicting a nude Donald Trump with a small penis? Deleted, that's pornography. A US soldier intimidating a tied and gagged prisoner with a dog in Abu Ghraib? That's a known torture method by Al-Qaeda, deleted.
Note: I made none of these last examples up, they all happened like that and very likely keep happening on a daily basis [0].
That's why I think it's dangerous to throw the term "illegal content on the Internet" around as haphazardly as many people often tend to do.
[0] https://www.abc.net.au/news/science/2018-09-29/the-cleaners-...