The unfortunate reality is that a single largest lobbyist for Chat Control in the EU is, ironically, the US, namely the US intel community-affiliated orgs like Thorn, WeProtect, etc. The EU bureaucrats are gullible, and it's no excuse of course, however there's a reason why every time there's a new driver, a new country behind Chat Control proposals. This has been part of coordinated U.S. signals collection strategy. Nobody in Europe stands to gain anything from this besides the US as all tech solutions for this are provided by US companies and agencies alone. The boards of these orgs are crawling with Washington guys, & their activity is limited to foreign countries. Not once have they attempted anything of the sort on US soil.
See https://news.ycombinator.com/context?id=44929535