To have checks like medical check and criminal check to make sure the person is safe to come to the US. Like they won’t allow criminal immigrants or they don’t want to spread disease.
Immigrants were banned from entering into the United States, and the workers were also banned.
Answer:
It was difficult because back then the white people had more privilege and went to better schools than the black. Many people were racists
Explanation:
Hope this helped or you can maybe find a more detailed answer in google
