> Would it be a fair argument to say the police have a better opportunity to prevent crimes if they can enter your house without a warrant?

This is a false equivalency. I don't have to use TikTok DMs if I want E2EE. I don't have a choice about laws that allow the police to violate my rights. I'm not claiming that all E2EE apps should be banned.

> Right, but this is worlds apart from "sharing the encryption key with a private company", is it not?

Exactly why I suggested that as a possible alternative.