When this stuff is used against you, it is FAR more likely going to be from a domestic group hostile to a political opinion you might have. Imagine if an outfit like Cambridge Analytica had the resources of a nation state helping it collect and process information about who might support any given policy (and be given the carrot) and who might oppose it (and be given the stick). That's the scale of threat we face. While certain governments around the world are asking for mandatory back door access to encryption, rest assured they have a "plan B" for getting access to your information without it, and the 3 letter departments are front and center in those plans.