I've been in, am currently in, and have been involved in unionizing workplaces.

Companies are extremely motivated to undermine unions. Unions tend to get stale as they age and lose their militancy. That's why wildcat action is so common. It sucks but even a workplace with a stale union is better off than one without collective bargaining.

The hardest part of organizing, like so many things, is going from 0 to 1. Once you've got a union you have a lot more power. Thinking you don't is what the company wants you to think.