For a long time, the US government genuinely feared that ham radio would be used for espionage. It had listening stations across the nation to monitor all communications. It flat out shut down the entire service (!) during WWII. And it came up with the idea that you have to communicate in the open, and that no form of obfuscation or encryption is permissible.
And then hams came up with this roundabout explanation that actually, it's good that you can't have privacy. No matter that it holds back a hobby that is by all usage metrics dying, and that there are many countries where encryption is allowed and doesn't lead to any terrible outcomes.
Privacy is useful in hobby uses. Maybe you want to talk to your spouse without a nosy neighbor listening. Maybe you want to periodically beacon your GPS location without the whole world knowing. There are so many cool things you can do, and there is spectrum that is... quite frankly, largely dead right now, and if you don't encourage new uses, it will be reclaimed by the government.