Everybody made that exact same "slippery slope to Nazi Germany" argument when euthanasia was legalized here. That was decades ago. There have been several attempts to broaden or narrow the scope of those laws and the democratic institutions did just what they were designed to do, making changes judiciously.

If you are worried about the slippery slope, then you are really worried that democracy does not work as intended. (And depending on where you live that may be a very reasonable worry). By the way, Nazi Germany was not really a surveillance state, perhaps you are thinking of East Germany?

> If you are worried about the slippery slope, then you are really worried that democracy does not work as intended.

Not really. That's a well established failure mode. People's perceptions can gradually shift as they become accustomed to the new way of doing things.

Personally I'd be less concerned about a slippery slope and more concerned about abrupt changes in policy. All infrastructure should be designed with the worst case scenario in mind. It's naive to assume that things will never get worse suddenly or that we will have plenty of warning or even a meaningful opportunity to react.

Are you saying democracy is working as intended, but you don't like the outcome?