Some do think so, and have data to back it up.
https://archive.is/XrYck
Anecdotally to me USA even looks like it's collapsing every time I visit it. In the larger cities there are homeless everywere, and often literally next to luxury yachts and limousines. A lot of the infrastructure seems like it's literally gonna collapse, and lots of it really does. It's quite a cyberpunk vibe when compared to e.g. the nordic countries.
Of course there are similar problems in many european countries too. Especially England is quite bad w.r.t homelesness and infrastructure. But England is in many ways culturally closer to USA than most europe.