Yes to what you wrote about Dr. King and Fannie Lou Hamer.  But that does not give any of us the right to be complacent about people's cruelty to others nor to see it as what people have to endure to secure their just rights.

Jesus chose to suffer for us, because God loved us that much.  It is not an excuse to see suffering glorified because some members of humanity see their power and status as a right to impose suffering on others.