Because the U.S. has been letting its mental health issues fester under a veneer of American Exceptionalism for the better part of a century in order to squeeze every last drop of labor surplus out of its citizens.
Maybe because it’s a totally unserved population. Even if you can afford mental health care, which many/most can’t, it’s very difficult to find a doc. There’s a shortage and an inability to pay.
https://ct.counseling.org/2023/05/a-closer-look-at-the-mental-health-provider-shortage/
https://www.americanprogress.org/article/the-behavioral-health-care-affordability-problem/
The article mentions neither of these issues. Perhaps his irresponsible for not doing so.
The article explicitly talks about that multiple times, though. Were you reading one of the articles that this one references? It mentions repeatedly how inaccessible and unaffordable healthcare is, using both of those points, and then moves on to discuss the issue as part of a broader societal trend.