We are the descendants of immigrants Joey boy and they key here is not what anyone group or another brings but how each group assimilates into the common culture and herein lies the problem. Immigrants are not being encouraged to assimilate and we are fast becoming an unassimilated boarding house for the Third World.
But he isn’t talking about immigrants.
Needless to say there is virtually zero innovation coming from South American immigrants (from where most illegals hail) to the US.