I can hardly believe it, but I think we're actually starting to see a cultural shift around unions and the connotations of the word "union". I think it's kind of happening as a snapback effect against Amazon, but I think unions are starting to make headway against 50 years of being vilified.
Campaigning for their opponent mostly. These elections happen so quietly among the most actively invested that even a small increase in the number of people actively involved in spreading propaganda could significantly affect them. If we actively tracked important unions and their elections in the same way we currently track countries and their elections we could direct people towards signal boosting and propaganda participation that could tip the balance.
Socialists are also much more likely to be heavily invested in such elections in large numbers than neoliberals. Popular support would be very easy to demonstrate compared to the latest shitfuck member of the Trilateral Commission or some other bullshit neoliberal org.