For example, will the aging population in developed countries affect their medium-term ability to repay their debts? Krugman doesn't say anything on this topic other than to say the problem isn't unique to France. Graphs and numbers on how aging affects productivity is very germane but absent in his analysis.
I actually don't blame Krugman here. Let's be honest, in this article, Krugman is a political columnist. He basically admits that this is a political rant in his second paragraph. And the thesis of the column is that some people did something he disagrees with so they must be bad people with bad motives.
I just don't like that this was posted and upvoted here. I like when HackerNews has better content than this. I can read this sort of thing in /r/politics, The Huffington Post, or The New York Times. I come to HackerNews for tech, startup, futurism, science news, etc. Any political posts should at least have a tech or entrepreneurship bent and be based in rational argument, not political one-upsmanship.