1) "I have nothing to hide" (which isn't quite as bad as it sounds - "my security is being a nobody")
2) "The government shouldn't be spying on people"
3) "The government shouldn't be spying on people but of course they are and you should expect that. Your online privacy is essentially your jobs and you shouldn't use services and expect them to protect your privacy"
4) "Even if the state is always actually going to spy on people in various fashions, we still don't want to accept and normalize this. Forcing the state to 'parallel construction' is better than letting the just publicly exhibit all its surveillance since normalized surveillance has more of a chilling effect. Moreover, institutions have a limited ability to keep their own secrets so surveillance is itself going to periodically come into the open and when it does, attacking it is useful, again, even if we know it will always be an element of modern society".
5) And you can go on and on... Should we allow enough explicit machinery of surveillance to make the state not want to use don't-ask-don't-tell third parties (no but..) and so-forth.