No, I want my browser to be controlled by me. It should just be more capable so I'm not getting exposed to materials that I don't like getting exposed to and maybe easily report them if I want. Like adblock but for illegal or undesirable online materials.
> All this because a negligible amount of web user upload CSAM?
Still it's better to fix it in the browser than keep increasingly policing the entirety of the internet to keep it neglible.