That makes no sense. If you don't trust your government anything but E2EE is compromised from the get go. "But they could seize your device" is not an argument against but for mandatory E2EE because it moves the responsibility from the server you have no control over to your device that you do.

There is no security without anonymity.

You don't understand what these words mean. You can be surveilled 100% by bodyguards and cameras to be secure but have 0% anonymity (or privacy).