Playing misery poker with racial hardships (like you are) is ridiculous and vain to begin with, but I'll ask you this: can you find one example of an American law targeting Koreans akin to this Louisiana law specifically targeting blacks?

"Any person...who shall rent any part of any such building to a negro person or a negro family when such building is already in whole or in part in occupancy by a white person or white family, or vice versa when the building is in occupancy by a negro person or negro family, shall be guilty of a misdemeanor and on conviction thereof shall be punished by a fine of not less than twenty-five ($25.00) nor more than one hundred ($100.00) dollars or be imprisoned not less than 10, or more than 60 days, or both such fine and imprisonment in the discretion of the court."

https://goo.gl/sBpv2x

EDIT: My limited recollection of American history reminds me that there were protectionist laws against Chinese immigrants on the Western frontier. For the sake of this exercise, let's limit your law search to 20th century discrimination against non-Japanese, non-Chinese immigrants.