What you’re describing isn’t exposure therapy. Exposure therapy is at the hands of a professional, in stages that are controlled and can be voluntarily terminated by the patient. It’s not performed by strangers and happenstance without the right or ability to terminate. What you’re describing is something else entirely. I’m glad it worked for you but I can see no reason why you’d think it’d work for everyone or conflate that with legitimate therapy techniques. In fact, trigger warnings allow people to prepare themselves so they can engage with the material as well, not always avoid. And that’s quiet a leap to a society of book burning fascists you made there.