Europol, a tax funded law enforcement body, is publicly lobbying exactly this.
Europol calls privacy-enhancing technologies, or PETS, the tools of criminals:
“PETs are used by criminal actors for secure communication, anonymisation, and protection of data. Criminal networks utilise various PETs, including end-to-end encrypted messaging apps, encrypted phones, and virtual private networks (VPNs), to communicate securely and anonymously. “
"For this reason, lawful access to electronic evidence has become one of the most critical issues for European law enforcement"
https://www.europol.europa.eu/cms/sites/default/files/docume...
Meanwhile Canada just banned e2e and Signal is leaving the country.
They can stick their chatcontrol where the sun don't shine, I don't expect people to play along with it. People will just move to apps that don't play ball with these backdoors.
But we'll need some decentralised ones. Signal leaving Canada is exactly the problem with centralised networks like theirs: there's a single entity to go after for compliance. So they can be forced just like telegram was forced by Durov's arrest in France.
But there's already good options that aren't centralised. I think people will move to those. At least that's what I will do and I hope most people follow suit.