There is no labor shortage. It's a shortage of good pay and working conditions. The the crux of this dispute is that one company offered better compensation while the current employer refused to beat that offer. The outcome was obvious.
In 1914 Henry Ford couldn't find or keep workers. He doubled pay to $5/day and cut working hours. Hundreds of men were at the gates asking for a job.
In 2019 Walmart needed over 1,000 truck drivers. Median pay was $45,000 and they offered $90,000+ bonuses. They had no problem filling those jobs.
There are many more examples. These two come to mind first.
In 1914 Henry Ford couldn't find or keep workers. He doubled pay to $5/day and cut working hours. Hundreds of men were at the gates asking for a job.
In 2019 Walmart needed over 1,000 truck drivers. Median pay was $45,000 and they offered $90,000+ bonuses. They had no problem filling those jobs.
There are many more examples. These two come to mind first.