If they can justify to legislators being able to spy on all network traffic, they can probably also convince those same legislators that encryption is a tool only bad guys use to prevent justice being served.

There's a constant push, at least in the US, for regulation on encryption. It's gotten consistently shot down thus far, thankfully. But it's a never-ending battle. And one day people will most likely become complacent enough to let go and feel the liberty melt away.

Just like the last couple generations have gotten increasingly soft on our right to bear arms. They've been conditioned to believe that it's dangerous, and boomer-like, and no longer important.