There is a large array of organisations listed in the page's footer which support this initiative. I don't know who they are, but I'd think researching who tho

There is a large array of organisations listed in the page's footer which support this initiative. I don't know who they are, but I'd think researching who those organisations are and what their political angle is could shed a little more light on whether this is genuinely motivated by online safety or just a scare tactic for more surveillance. How the page is worded, it sounds as if they'd also be OK with "only" mandatory client-side scanning a la Apple. (Not that this would be much less dystopic, but it would permit E2EE)