No Anti-Asian immigration legislation in late 1800s/early 1900s

[True Federalist (진정한 연방 주의자)]

We probably see the 1920's immigration laws passed in 1900's.  More European immigration would have been diverted to South America instead, especially Argentina, perhaps causing Argentina to join the Axis early in World War II.  Japanese-American relations would not have been as strained as they were in the early 20th century.  Might well have been less support for annexing Hawaii as well, and probably would have been done as a Philippines style unincorporated Commonwealth instead of as an incorporated Territory.

[True Federalist (진정한 연방 주의자)]

No, it would have meant that there would have been more Asian emigration. About the same number would go to Hawaii, and more would have ended up in the United States than in our time line.

Asian emigration of the late 19th century was limited primarily by the availability of places that would accept Asian immigrants, not the supply of willing emigrants.