They are not saying they are okay with it because they have nothing to hide; they are just saying that they don't mind. It just doesn't bother them. And they also aren't arguing that it shouldn't bother you if you don't watch anything wrong or that every TV should spy on their owner.

Saying "I'm not bothered by it" is a statement that suggests you should not be bothered by it too.

- I'm angry because people let their dogs poop on my garden

- People let their dogs poop on my garden too and I'm not bothered by it!

Yep, what about it?