The biggest argument against unionizing, as someone who has seen the scene a tiny bit, is that you might put in a lot of effort for a unionization effort that f

The biggest argument against unionizing, as someone who has seen the scene a tiny bit, is that you might put in a lot of effort for a unionization effort that fails. Running a unionization campaign is a lot of work and can even entail taking some risks. If people at your company are pretty happy, if management is responsive, if benefits haven't been eroded yet, if lots of people have a strong libertarian bent, then you might not be able to convince enough people. Even when unionization is the best long term course for the workers as a whole, if the actual campaign is futile it's the best course for you as an single person not to get involved in a campaign.