Editorial: It is common to find essays offering arguments that seem to show that our nation is in decline.
Main Conclusion
There's no cause for alarm that our nation is in decline.
Intermediate Conclusion (this shows that)
The anxious tone of the essays is due to the psychological state of the writers, not the actual condition of the nation.
Evidence
There are essays that seem to show that our nation is in decline.
Evaluate
This should strike us as a pretty weird argument. People have written essays offering arguments that seem to show that our nation is in decline.
This author is saying, 'We don't need to worry about these essays. There's nothing wrong with our nation. These essays sound alarmist just because the writers are psychologically disturbed."
Where's your evidence for that buddy? Why should we just believe that these writers are overly pessimistic alarmists? You're just asking us to take your word for it?
Goal
Let's look for an answer complaining that this is a totally unfair way to dismiss an argument.
If I write an essay showing that our environment is in decline because of global warming, citing the massive loss of over 50% of species, and describing the tens of millions of climate refugees we'll have when the oceans rise a foot or two, can this guy just say, ? Of course not.