In this case, Obama is right: It’s worth reflecting on how much America has changed since 1965, and examine the effects of the legislation Kennedy promoted that brought it about.

The passage of the act marked a fundamental change in America’s immigration policy: Rather than serving the interests of Americans and national unity by setting limits on immigration, the act put “family unification” as the top priority, serving the interests of foreigners first.
Kennedy declared:

“First, our cities will not be flooded with a million immigrants annually. Under the proposed bill, the present level of immigration remains substantially the same…

Secondly, the ethnic mix of this country will not be upset… Contrary to the charges in some quarters, [the bill] will not inundate America with immigrants from any one country or area, or the most populated and deprived nations of Africa and Asia…

In the final analysis, the ethnic pattern of immigration under the proposed measure is not expected to change as sharply as the critics seem to think… The bill will not flood our cities with immigrants. It will not upset the ethnic mix of our society. It will not relax the standards of admission. It will not cause American workers to lose their jobs.”