I think everyone knows the answer to that question, they just don't like to say it out loud:
Contradictory and hypocritical Puritan values with an "entertainment culture" that simultaneously praises and bashes immorality.
America also has ridiculous divorce statistics, and because of this, many children grow up without a father, so males in particular have no basis for expressing their emotions in a healthy manner.
Add in some overly politically correct bullshit and "cultural sensitivity" propaganda everywhere you look.....and it's no wonder so many kids are shooting up schools.
It also doesn't help that the internet is literally raising our kids today instead of the parents (assuming they even have parents).
Social media makes people feel more disconnected than connected.
Big Pharma also overdiagnoses people with stuff, because if you aren't on SOME kind of medication....you aren't truly American.
You're the only one that thinks that, not "everyone". The real reason is because mental health help is severely underfunded in America. ---