You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
alternatehistory.com
In the early 1920s the US passed very restrictive immigration laws.
Is there any way such laws could have been blocked.
I see several good consequences for America if it continued to have large scale immigration. I think that the US economy would be rather more dynamic and suffer less in the slump.
Of course some hundreds of thousands of German Jewish people would have had a possible destination.