Why was the Massachusetts bay colony so successful immediately?

ExplanatioThe Page Act of 1875 (Sect. 141, 18 Stat. 477, 3 March 1875) was the first restrictive federal immigration law in the United States, which effectively prohibited the entry of Chinese women, marking the end of open borders. The 1882 Chinese Exclusion Act would go on to ban immigration by Chinese men as well.

The law was named after its sponsor, Representative Horace F. Page, a Republican who introduced it to "end the danger of cheap Chinese labor and immoral Chinese women". The law technically barred immigrants considered "undesirable, defining this as a person from East Asia who was coming to the United States to be a forced laborer, any East Asian woman who would engage in prostitution, and all people considered to be convicts in their own country. The Page Act was supposed to strengthen the ban against "coolie" laborers, by imposing a fine of up to $2,000 and maximum jail sentence of one year upon anyone who tried to bring a person from China, Japan, or any East Asian country to the United States "without their free and voluntary consent, for the purpose of holding them to a term of service".

Only the ban on female East Asian immigrants was effectively and heavily enforced and proved to be a barrier for all East Asian women trying to immigrate, especially Chinese women.[5] Moreover, the Page Act created the policing of immigrants around sexuality which "gradually became extended to every immigrant who sought to enter America," and today remains a central feature of immigration restriction, according to some scholars.

In 1875, President Ulysses Grant delivered a Seventh Annual Message to the United States Senate and House of Representatives. President Grant reaffirmed the United States bearing regarding the immigration of women originating from the Far East.