What was the immigrant experience with laws and restrictions

Immigrants suffered many stereotypes, they worked for minimum wage plush they had to compete against other people for a job. If I recall amendments 13-15 basically gave them rights but government exploited the rights and found ways to give them unfair treatment, for example one of the amendments gave them equal rights to those of Americans, therefore that means they would have the same punishments etc.

Idon’t know the answer sorry