This is not historically accurate.
For example, Henry Ford actually increased wages (without worrying about unions, and he had literal enforcers to bully people.)
He claimed to be doing it for altruistic reasons, and so that workers in his plants could afford a Ford, but the real reason was because he had to, because people could choose to work elsewhere, even if they had to move. Also, he attracted people from other cities and states to move to Dearborn.
This is the real antidote to union-busting and union-towns. Any job that basically needs a person can always be paid minimally, but multiple employers have to compete for that person; perhaps an alternative job is far away, but mobile people will always be worth more because their market is larger. It was a bit different 150 years ago during the Industrial Revolution, because of information asymmetry and the cost of relocation.
So why form a union? Just get a better job from an employer that literally values you more. It's not like these companies don't exist.