At least the first five of these seem to mostly be a problem in New York, where the author is based, and similar cities, not “America” writ large. For example, the author complains about the housing costs, but the national home ownership rate in the US is about the same as the UK or France, and substantially higher than Germany. (And the median American home is twice as big as in those countries.) The author complains about the lack of transit, but the median American commute is among the shortest in the OECD. The homicide rate in my Maryland county isn’t great (about 2 per 100,000) but it’s closer to say Canada or Belgium (1.7-1.8 per 100,000) than those countries are to Sweden (1.1 per 100,000). Racial divisions are a challenge throughout America, of course, but that’s true all over the world. France’s Macron is talking about a government takeover of Islam: https://www.ft.com/content/88c1e898-5269-11ea-90ad-25e377c0e.... And Macron is the liberal! Le Pen, a far right candidate, is polling dangerously close to him at 45-55. As a brown person, I’d much rather be in America right now even with Trump than in France.
What the recent situations are bringing out is not that “America” is in decline, but that “American cities” are in decline. The mayor of Chicago, Lori Lightfoot, recently said that cutting police funding was impossible, because given the union contracts the city would have to lay off mostly black and Hispanic officers! This is a police force that was running Abu Ghraib-style interrogation centers. For what New York is spending extending one subway line a few miles, cities like Copenhagen have built entire new, fully automated, lines. New York City spends $25,000 per student, or about 44% of the city’s median income. London spends just 15% of the city’s median household per student.
You can’t fix a problem unless you can properly identify the problem. Articles like this are willfully blind to the problem.