How did the character of slavery changeduring the 1619 and 1739 how did the slavery change throughout colonial north america

Why were chinese american immigrants frequently detained when trying to immigrate through angel island? the rules for immigration were stricter at this checkpoint due to health issues that were prevalent among asian populations at this time. the location of the island was difficult to reach, and ships to the mainland were often prevented from sailing more than once a week. immigration agents were notorious for asking immigrants confusing questions as a means of denying them entry. low wages caused a shortage of immigration officials, so many immigrants had to wait weeks or months before their applications were processed.

Don’t mind the already marked answer but taking it now

Could anything have been done through compromise to stop it, or did it have to happen?