Lyndon Johnson had great plans for the US, but wanted to win the Vietnam War with one huge push. That quickly turned into a giant quagmire. LBJ and later Nixon, ordered bombing of the North. That meant the US factories were working 24/7. Nice for factory owners and union workers, but LBJ was paying for it with paper money because he didn’t want to raise taxes. Ironically, Nixon ran for President as an anti inflation and pro peace candidate.
Nixon and Kissinger doubled down on the bombing and inflation started to spiral. Also, those factories were getting a bit worn down. Unable to met the deamnd for the bombing and supply foreign markets the US ceded local steel making to Germany and Japan. This is going to bite the US in the ass when the Arab Oil boycott hits. US steel is much more oil dependant than the newer factories, so suddenly Toyotas and VWs are the hot cars, and US manufacturing takes a huge hit.
Carter tried to control inflation and cut oil use, but got kicked out over the Iran hostage mess. Reagan came in and cut taxes for the rich. This increased the debt, but gave the economy an unrealistic jolt.
tl dr. In 1960, minimum wage was $1.00/hour. The average house was $11,000.00 and $1 million was considered a vast fortune.* Middle class meant a High School graduate with a Union job supporting a family of four.
By the time Nixon, Reagan and Bush Sr were done, ‘middle class’ was two college degrees supporting the house and $1 million was what a rich guy paid for a party.
In case anyone tells you that $1 million is 1960 would be $10 million today, tell them that in 1960, $100,000 would buy a mansion in Beverly Hills.