I've been in tech my whole life. I really enjoy technology, I'm pleased with the career I chose. But man am I tired of technologists "moving fast and breaking things" without any concern whether those things being broken might be better left whole. Just because you can smash social norms, doesn't mean you should.
Privacy for pedophiles is bad. Privacy for terrorists is bad. Privacy for illegal acts is often bad (this is entirely the point of whistle-blower legislation, after all)
Sure, sure, my basic assumption is that you can't have privacy for certain acts only. If the idea is that somebody watches and completely ignores all legal behavior but steps in when they witness illegal behavior, that's not privacy, it's something else.
Privacy means that nobody watches, so if you want to build tools for privacy, you'll always end up also enabling people to use them for illegal things. We (as Western societies) have mostly decided that general privacy is so valuable to citizens that we accept the collateral damage of crime being possible. I've not heard a lot of arguments against privacy in general, the arguments tend to be "I don't need privacy in this particular part of life, so it better be removed".