Part of the problem is a shortage of workers to keep goods moving. The basic cause is starting with the boomers, Americans (our community and the Mormons excepted ) have been more interested in making money and having fun, rather than producing and raising children. The driver who should be delivering the formula never got born. Plus both the labor unions and the Republicans (albeit for different reasons) are anti-immigration, thereby limiting American economic activity to what can be produced with our shrinking and increasing aged work force.
Note how in the last election, we had a pre-boomer against a boomer running for president, both of whom would be the oldest person ever elected if they won.