It's that last bit that needs justification - that being ignorant contributes to the problem. The claim is that your knowledge or ignorance, peace or anxiety, affect only you.
Although even if you accept that claim, you could argue that being aware of the world made you a better person even if it makes you unhappy - a sort of Socratic argument that "escaping the cave" is inherently good. In that case you'd have to justify (only to yourself, of course) that "news" is the right kind of knowledge to accomplish Goodness.
Although even if you accept that claim, you could argue that being aware of the world made you a better person even if it makes you unhappy - a sort of Socratic argument that "escaping the cave" is inherently good. In that case you'd have to justify (only to yourself, of course) that "news" is the right kind of knowledge to accomplish Goodness.