I mentioned in another thread a few weeks back that I got raided by the British police last February for "uploading/downloading "illegal" anime artwork on one of the (anime) artwork websites we're criminally investigating." (Yes, the British police are criminally investigating artwork websites, and I'm still under investigation at the time of writing this.)
Even if somehow the government were able to catch everybody who abuse children, take photos and upload them to sites on Tor, they can classify anything they like as "child abuse" in order to justify survillancing people and restricting further freedoms.
What's even sadder is that people don't care about safety. They care about the illusion of safety. As long as people have the illusion that they're being kept safe - the farce known as the Online Safety Bill being a great example - they'll tolerate any injustice.
Honestly, I'd recommend downloading software like Signal, Session, VeraCrypt, etc. as well as making a Linux USB stick now (especially since countries like the UK wants Red Star OS levels of snooping) because this is honestly going to get much, much worse...