"Immigrants who lack American values weaken our culture."
This would be the correct answer, because nativism includes the idea that immigration is seen as bringing hostile people into a country and that they will be unable to assimilate into the new country's culture.
Many of the people pictured in the image wear clothes that are withered and worn and look sickly, tired, and skinny. The child, for example, looks extremely malnourished. From these obvious observations, the United States should probably participate in international efforts to provide food and shelter for refugees.
A decision of the U.S. Supreme Court that upheld the constitutionality of racial segregation laws for public facilities as long as the segregated facilities were equal in quality – a doctrine that came to be known as "separate but equal”