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Here is a very good history of immigration which helps us to see the whole picture:

History of U.S. Immigration

Here is link to a spreadsheet developed by the Interfaith Immigration Coalition continually updated to show resources available to migrants suffering from the pandemic:

https://docs.google.com/spreadsheets/d/18p9OSlLpSYanIoUC-gEbhVbRMYVUfw4wyrixa9ekGdc/htmlview?usp=embed_facebook