Did laws and policies did much or did very little to protect minority groups (blacks, immigrant, women) from 1865-1900?

 Other than when slaves were freed, the answer would be No. it wasnt until 1919-1970 that the laws actually started helping minority groups.

during both period congress passed law restricting the civil liberties of american citizen that meet with the overall public support is the one statement that explain the rate scare of the 1920 and 1950 is very similar