Why were there never any major waves of immigration from Spain or France to the United States after the nation gained its independence?

by the_ebagel

It doesn’t seem like there were a lot of migrants that came directly from France or Spain during the great waves of migration in the 19th century, even though millions of people left Britain, Germany, Italy, Ireland, Scandinavia, and various nations in Southern and Eastern Europe at this time.

ACOdysseybeatsRDR2

The French part atleast was answered a few years ago by /u/dhmontgomery

https://www.reddit.com/r/AskHistorians/comments/89uhta/comment/dwtz6um/