Yes the facts are there for all to see (in response to both of the above posts). But how do we know what are the causes? Is it just public policy? It can never be that simple in such a complex world. Let me make a feeble attempt to list a very few handful of other causes
- Rise of manufacturing in China
- India since early 90s abandoning the socialism of Nehru and his daughter Indira and moving towards free markets. Opening up its economy.
- Rise of education in other parts of the world, not least India.
- Changing nature of world economy itself. New technologies. See above related to this point.
- Disintegration of family in America. Especially severe in black community but hardly confined to that.
The list can just go on and on. Who knows what exactly caused what? These things are so complex. If someone just wants to prove a point, they can cherry pick stats. But in reality I don't think the experts know that much. We have an army of well paid experts, analysts and what not in the oil field and they can barely predict the price of oil. This is just one example...
So to be honest, I really don't know. The social, cultural, economic are all so closely inter related and America's decline just hasn't been about one.
The cause is obvious- top down class warfare executed behind a screen of divisive right wing propaganda. All those rightfully disgruntled Trump voters? Dumped by the ownership class. They own, you don't. There are no stakeholders other than the shareholders & the bondholders. They're not accountable to the rest of us because they're rich. It's like the Divine Right of Capital.
The GOP's latest tax plan just makes the situation worse. Their moves to cut benefits to Americans who depend on them just makes the situation worse. They know it. To vote for them is to endorse unfathomable greed at the top.