The argument about having nothing to hide is rather weird. I have nothing to hide in my wardrobe, but I'm not too keen on the government sending people round to check it out. Reminds me of Reagan, and one of his gags, 'the most frightening words in English are 'I'm from the government, and I'm here to help you''.
Another point is that people who do want to hide, will access the dark web, or similar. For example, these are used in countries where censorship is very harsh, and you can be imprisoned for non-patriotic comments.