How we're Chinese Immigrants treated in the late 1800s?

Answer: They were not allowed in the US

Explanation:

Under the Chinese Exclusion Act, passed in 1882, the White House denied entry to workers of that origin - then attracted by the gold rush in California and the possibility of employment on the railroad - alleging that they devalued the wages of the local workforce. The country's historical relationship to this issue has always been complex, and the veto of Chinese immigration for over 60 years is one of its darkest episodes.

They were fighting for their lives; taking up all the unwanted jobs while being the target of racist comments and intolerance.