The labor shortage crippling the U.S. economy is real and it is not just because of the global COVID-19 pandemic. A large part of it is also because fewer immigrants are coming to the U.S. And as a result, employers are struggling to fill the roughly 11 million open jobs.
Here is an informative and quick read about how the U.S. economy is missing more than 1 million immigrant workers, how different industries are being affected, and why some people actually think the lack of immigrants is a good thing.
https://www.npr.org/2021/12/22/1063104262/immigrant-workers-us-economy-key-jobs