The reason that the US did not sign on to this, is that it does not stop dumping. It just allows for countries that can afford to, pay to dump. The US under President Trump has done more to clean up the problem than any other country. This agreement is not a winner. It's a bad deal for the little guy.
As one of the baby boomers out there (66 and counting) I'm here to tell you that most of us are still out there working on our second, and for some third pension. We are much more informed than the Millennials who have suffered from a failing educational system, and the resurgence of a socialist doctrine because of the loss of our core values.
As the old lyrics go "Teach your children well
Don’t just read the story, tell it: contribute your ideas and experience to the dialogue.