As an employer why employ migrants?
Difficulty with the language.
Different cultures.
The one plus is they will cost less and the taxpayer picks up the bill for the unemployment is creates.
https://ukandeu.ac.uk/fact-figures/h...its-in-the-uk/
https://fullfact.org/immigration/immigration-wages/
https://www.theguardian.com/uk-news/...lary-threshold