Did you ever hear of the Civil Rights Act of 1964 passed by Democrats and a few moderate Republicans and signed by LBJ?

Outlawed discrimination based on race, color, religion or national origin in hotels, motels, restaurants, theaters, and all other public accommodations engaged in interstate commerce.
The desegregation of public schools and authorized the U.S. Attorney General to file suits to enforce the law.
The Equal Employment Opportunity Commission (EEOC) as well as certain state fair employment practices.
In 1965 they passed the Voting Rights Act.

In addition, Democrats have championed women's rights, gay rights, and rights for the disabled.
Republicans--not so much.