That's fine, but you did stil have the same immigrants from the early 1900s, and their children. These families would likely not rise to great education and prosperity until the second generation of Americans was born.
Oh, and by the way, Reagan, with amnesty programs and all, wuz the best. ;)
Those early immigrant families rose into prosperity precisely because of the immigration cutoff. The assimilation process alone which it encouraged was a primary factor.
After 35 years and 40+ million new immigrants it's time to let history repeat itself. We need a timeout, not an expansion of current failed policies.
Reagan and the Simpson half of Simpson/Mazolli called the 86 amnesty one of the biggest mistakes of the Reagan era.