Ancient Rome also imported hordes of cheap foreign workers, which ultimately led to the fragmentation of their society, and their conquest and downfall.

https://invisiblepeople.tv/las-neglect-of-homeless-people-reminiscent-of-dark-ages/?utm_source=rss&utm_medium=rss&utm_campaign=las-neglect-of-homeless-people-reminiscent-of-dark-ages

“There Were Warning Signs Before the Dark Ages Hit the Whole of Roman Society, But They Went Largely Ignored. And It’s Happening Again”.