How did the institution of slavery continue to affect the world even after it was abolished

Even though slavery was abolished, that did not mean the white people would stop treating the black people with a lack of respect. Thus lead to segregation some years later, and then resulted in the civil right movement. The institution of slavery affects the world today, people of a minority are treated with a lack of respect and I'm not just talking about black people. There still is some racial injustice today, all because of slavery that is rooted in this country. However, the racial injustice that some face today is not as strong as it was during MLKJ's time