This is not a law of nature, many unions just do their job. Many companies also treat their workers unfairly, so there's that. Workers need a way to organise.

This is not a law of nature, many unions just do their job. Many companies also treat their workers unfairly, so there's that. Workers need a way to organise. What's worse, a company churning through employee after employee or a company captured by its union? Both can happen.