I know the DNC isn’t exactly a pro-union party, but the GOP is an outright anti-union party. I am curious why the Teamsters went with this move, perhaps they want increased protectionism to fight outsourcing of jobs? But the Teamsters are largely truckers, ie you cannot outsource these jobs.
Very odd choice.
I do generally think it’s more of a case where American workers are often reactionary due to America’s overall circumstances and Material Conditions in the broader geopolitical landscape, than anything else. Nationalism is a big thing in America, Union or not.
Imperialism also inflates Worker’s living standards, as well as keeping a domestic underclass of immigrants willing to work for the barest wages via threat of expulsion. Unions can often be anti-immigration because of this, additionally adding to reactionary rhetoric among unions.