Martin Luther King Jr was against racism
They thought slavery was terrible and they didn't want to take sides with Southern Virginia, where slavery was the main part of the economy and the society. They thought it was immoral, selfish, and cruel. They didn't want to be a part of the movement that supported slavery. (during the civil war)
I hope this helps!
~kaikers
To be honest I would do some research and look it up. Or if you have a text or some resources the teacher gave you I would reread those.