> the Democratic Party's abandonment of Labor.

The Democratic Party didn't abandon labor. Labor and the electorate abandoned the Democratic Party. Starved for funding and votes, the Democratic Party moved right and embraced neoliberalism. Mondale was pro-labor. He was crushed by Reagan in 1984.

https://en.wikipedia.org/wiki/Southern_strategy

https://en.wikipedia.org/wiki/Right-to-work_law

https://en.wikipedia.org/wiki/Democratic_Leadership_Council

https://en.m.wikipedia.org/wiki/History_of_the_United_States...

https://www.nytimes.com/1984/01/22/magazine/labor-s-gamble-o...

https://en.wikipedia.org/wiki/Third_Way